Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 157748: I am struggling with determing slope based on coordinates. Can you explain how this is done?
Click here to see answer by vleith(2983) About Me 

Question 157733: Hi, I would love to know how can this type of questions being solve.
"Suppose f(3)=8, f(0)=4, and f is a linear function. Find F(12)."
Eventhough,I've got -3 as the answer. Was I correct?

Click here to see answer by Fombitz(32388) About Me 

Question 157732: Can I please have some help with this question. This is a problem given by my instructor. I have come up with a different answer every time. I am either leaving out a step or performing too many. THANKS!!!!
y/5 - 2/5 = 1/3 - y

Click here to see answer by Alan3354(69443) About Me 
Question 157732: Can I please have some help with this question. This is a problem given by my instructor. I have come up with a different answer every time. I am either leaving out a step or performing too many. THANKS!!!!
y/5 - 2/5 = 1/3 - y

Click here to see answer by checkley77(12844) About Me 

Question 157985: The left and right numbers of an open book are two consecutive integers who's sum is 469. Find these page #'s
Next Question:
The product of twice a number and three is the same as the difference of five times the number and 3/4. Find the number
Next Question:
To make an international telephone call you need the code for the country you are calling. The codes for Belgium, France, and Spain are three consecutive integers who's sum is 99. Find the code for each country.

Click here to see answer by checkley77(12844) About Me 
Question 157985: The left and right numbers of an open book are two consecutive integers who's sum is 469. Find these page #'s
Next Question:
The product of twice a number and three is the same as the difference of five times the number and 3/4. Find the number
Next Question:
To make an international telephone call you need the code for the country you are calling. The codes for Belgium, France, and Spain are three consecutive integers who's sum is 99. Find the code for each country.

Click here to see answer by Earlsdon(6294) About Me 

Question 157939: Please help my daughter with this problem given by her teacher she is in 8th grade. She has completed the whole worksheet with the help of a friend but he could not figure this one out.
Explain how you know that the following are linear relationships?
graph
x y
_________
2 20
3 18
4 16
5 14 y=4x+1

a.) The graph?
b.) The table?
c.) The equation?

Click here to see answer by atique.ah(27) About Me 

Question 158031: Review Exercises Chapter 1
Find an equation of the line having the given characteristics. Write the equation using the general form or the slope-intercept form, whichever you prefer. Graph each line.
9. Slope = -3; containing the point (2, -1)

y = -3x - 1 this is where I started

Click here to see answer by jim_thompson5910(35256) About Me 

Question 158073: Can someone help me with this one.
Determine whether the graphs of the equations are parallel lines, perpendicular lines or niether.
3x - 8y = -18
32x + 12y = -18
Thank you!

Click here to see answer by jim_thompson5910(35256) About Me 
Question 158073: Can someone help me with this one.
Determine whether the graphs of the equations are parallel lines, perpendicular lines or niether.
3x - 8y = -18
32x + 12y = -18
Thank you!

Click here to see answer by Earlsdon(6294) About Me 
Question 158073: Can someone help me with this one.
Determine whether the graphs of the equations are parallel lines, perpendicular lines or niether.
3x - 8y = -18
32x + 12y = -18
Thank you!

Click here to see answer by Electrified_Levi(103) About Me 

Question 158092: How do I find the ordered pairs for: y=x+7?
Click here to see answer by vleith(2983) About Me 

Question 158244: Question: Find the DOMAIN and RANGE of the relation:

Click here to see answer by Edwin McCravy(20055) About Me 

Question 158270: In this exercise they want you to find the percent, parts out of 100, decimal and/or fraction.
#6 is parts out of 100=10.5, find percent, decimal and fraction
#8 is decimal=0.80, find percent, parts out of 100 and fraction
#10 is fraction=3/20, find percent, parts out of 100 and decimal

Click here to see answer by checkley77(12844) About Me 

Question 158284: Hi, my question is: how do you find the slope of two points when the coordinate of one of the points is a fraction?
(5/3,-2) (3,6)

Click here to see answer by Alan3354(69443) About Me 
Question 158284: Hi, my question is: how do you find the slope of two points when the coordinate of one of the points is a fraction?
(5/3,-2) (3,6)

Click here to see answer by jim_thompson5910(35256) About Me 

Question 158334: Applications : G%2BP=15008G%2B5P=10%2C500 solve
Click here to see answer by checkley77(12844) About Me 

Question 158337: y=5xy=-3x%2B6
Click here to see answer by jojo14344(1513) About Me 

Question 158336: x%2By=500 0.3x + 0.5y = 175}}
Click here to see answer by checkley77(12844) About Me 

Question 158352: 9x - 16y = 713
19x - 10y = 887
I need to solve this using any method, but i cant figure out which one would be the easiest. I would love to see the steps and correct answer. Thank you for your help!

Click here to see answer by checkley77(12844) About Me 

Question 158346: Solve each system of equations using any method.
5x - 12y = 207
5x - 11y = 206
I'm not sure how to solve this. I have been trying to use the substiution method, and I just cant seem to get it right. Id love to see the correct steps, and the correct answer. Thank you!

Click here to see answer by checkley77(12844) About Me 

Question 158529: florida has 28 fewer electoral votes than california. If the total number of votes for florida and california is 82 , find the number for each state.
Click here to see answer by jojo14344(1513) About Me 

Question 158621: I need help with this equation

n-(8+4n)=2(3n-4)

Click here to see answer by gonzo(654) About Me 

Question 158641: A=pie(R)(S)+ Pie(R)^2
solve 4 S

Click here to see answer by checkley77(12844) About Me 

Question 158766: Find the slope of the graph of each equation.
x+y=5

Click here to see answer by checkley77(12844) About Me 

Question 158778: Graph a line through the origin that is parallel to the graph of x+y=10
Click here to see answer by Alan3354(69443) About Me 

Question 158803: hi again,i was hoping someone can help on this one.
(-4,2) perpendicular to 2x+3y=-6,
all i know is that u change 2x+3y=-6 to y=mx+b and perpendicular is recipical to its self. after u find what it is u have to grap it out. my teacher really doesnt explain this one that well.

Click here to see answer by checkley77(12844) About Me 

Question 158802: hi,can anyone help me on this one:
(-4,2) perpendicular to 2x+3y=-6
i know i have to change 2x+3y=-6 to slope:y=mx+b
yeah.

Click here to see answer by checkley77(12844) About Me 

Question 158662: The Question is:
Consider the line segment determined by A(-1,2) and B(5,11). Find the coordinates of a point P such that AP/PB=2/1.
I have no idea where to start with this problem... My solution manual states that the point "must" lie 2/3 of the distance from A to B.
My question is... How does someone find out that the point "must" be 2/3 the distance from A to B.
I understand from the problem that line segment AP is twice as long as line segment PB. I found a midpoint (2,13/2) and the quarter point (7/2,35/4)and thought somehow I could come up with the 2/3 that they start with in the manual.
Please explain how you get to the 2/3 distance.
Thanks to all you tutors out there!

Click here to see answer by ankor@dixie-net.com(22740) About Me 

Question 158886: How do add fractions with variables?
Click here to see answer by Fombitz(32388) About Me 

Question 158917: 5x-10=-7x+1
how do you find the answer
the steps

Click here to see answer by jojo14344(1513) About Me 

Question 158918: Describe how you could use a graph or table to solve the equation
5x+10=-20
Suppose you use a different letter or symbol to represent the value of the unknown variable. For example, 5n+10=6n instead of 5x+10=6x
Does this make a difference in solving the equation? Explain.

Click here to see answer by jojo14344(1513) About Me 

Question 158946: find the slope of the line that passes thru the given points:
(-8, 2) and (-3, 4)

Click here to see answer by KnightOwlTutor(293) About Me 

Question 158949: write an equation of the line with the given slope, mand y intercept (0,b)
m=-6/5, b=9

Click here to see answer by checkley77(12844) About Me 

Question 158942: graph linear equation by finding the pltting its intercepts:
-4x-16y=16

Click here to see answer by checkley77(12844) About Me 

Question 158939: determine whether the ordered pair is a solution of the given linear equation.
2x+5y=-8: (1, -2)

Click here to see answer by checkley77(12844) About Me 

Question 158993: How do i go about figuring out how to write an equation in slope-intercept form that satisfies each given condition and finding the slope when the x-intercept = 3 and the y-intercept = 2 and there is no slope given
Click here to see answer by checkley77(12844) About Me 
Question 158993: How do i go about figuring out how to write an equation in slope-intercept form that satisfies each given condition and finding the slope when the x-intercept = 3 and the y-intercept = 2 and there is no slope given
Click here to see answer by gonzo(654) About Me 

Question 158998: solve for x: 2y+3x=12
Click here to see answer by checkley77(12844) About Me 

Question 158992: I am having a problem understanding regression lines. One of my study questions is "use the equation of the regression line to predict y when x=20"
I am given a multiple choice answers of: 45.5, 50, 40 or 48.5.
Can somebody explain this to me?

Click here to see answer by gonzo(654) About Me 

Question 158941: Graph linear equation:
9y+x+8

Click here to see answer by Edwin McCravy(20055) About Me 

Question 159095: haley went for a trip. she started from home at a speed of 55 miles per hour. on her way, she passed the Ice Cream Shoppe 15 miles from her home.
Write a rule that shows the relationship between haleys distance from the Ice Cream Shoppe and the time since she left home.

Click here to see answer by vleith(2983) About Me 

Question 158948: determine the pair of lines is paralle, perpendicular or neither:
3x-8y+-10
32+12y=19

Click here to see answer by Fombitz(32388) About Me 

Question 159144: write an equation of the line containing the given point and perpendicular to the given line (8,-4); 6x+7y=2
Click here to see answer by nerdybill(7384) About Me 
Question 159144: write an equation of the line containing the given point and perpendicular to the given line (8,-4); 6x+7y=2
Click here to see answer by checkley77(12844) About Me 

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 3871..3915, 3916..3960, 3961..4005, 4006..4050, 4051..4095, 4096..4140, 4141..4185, 4186..4230, 4231..4275, 4276..4320, 4321..4365, 4366..4410, 4411..4455, 4456..4500, 4501..4545, 4546..4590, 4591..4635, 4636..4680, 4681..4725, 4726..4770, 4771..4815, 4816..4860, 4861..4905, 4906..4950, 4951..4995, 4996..5040, 5041..5085, 5086..5130, 5131..5175, 5176..5220, 5221..5265, 5266..5310, 5311..5355, 5356..5400, 5401..5445, 5446..5490, 5491..5535, 5536..5580, 5581..5625, 5626..5670, 5671..5715, 5716..5760, 5761..5805, 5806..5850, 5851..5895, 5896..5940, 5941..5985, 5986..6030, 6031..6075, 6076..6120, 6121..6165, 6166..6210, 6211..6255, 6256..6300, 6301..6345, 6346..6390, 6391..6435, 6436..6480, 6481..6525, 6526..6570, 6571..6615, 6616..6660, 6661..6705, 6706..6750, 6751..6795, 6796..6840, 6841..6885, 6886..6930, 6931..6975, 6976..7020, 7021..7065, 7066..7110, 7111..7155, 7156..7200, 7201..7245, 7246..7290, 7291..7335, 7336..7380, 7381..7425, 7426..7470, 7471..7515, 7516..7560, 7561..7605, 7606..7650, 7651..7695, 7696..7740, 7741..7785, 7786..7830, 7831..7875, 7876..7920, 7921..7965, 7966..8010, 8011..8055, 8056..8100, 8101..8145, 8146..8190, 8191..8235, 8236..8280, 8281..8325, 8326..8370, 8371..8415, 8416..8460, 8461..8505, 8506..8550, 8551..8595, 8596..8640, 8641..8685, 8686..8730, 8731..8775, 8776..8820, 8821..8865, 8866..8910, 8911..8955, 8956..9000, 9001..9045, 9046..9090, 9091..9135, 9136..9180, 9181..9225, 9226..9270, 9271..9315, 9316..9360, 9361..9405, 9406..9450, 9451..9495, 9496..9540, 9541..9585, 9586..9630, 9631..9675, 9676..9720, 9721..9765, 9766..9810, 9811..9855, 9856..9900, 9901..9945, 9946..9990, 9991..10035, 10036..10080, 10081..10125, 10126..10170, 10171..10215, 10216..10260, 10261..10305, 10306..10350, 10351..10395, 10396..10440, 10441..10485, 10486..10530, 10531..10575, 10576..10620, 10621..10665, 10666..10710, 10711..10755, 10756..10800, 10801..10845, 10846..10890, 10891..10935, 10936..10980, 10981..11025, 11026..11070, 11071..11115, 11116..11160, 11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 17551..17595, 17596..17640, 17641..17685, 17686..17730, 17731..17775, 17776..17820, 17821..17865, 17866..17910, 17911..17955, 17956..18000, 18001..18045, 18046..18090, 18091..18135, 18136..18180, 18181..18225, 18226..18270, 18271..18315, 18316..18360, 18361..18405, 18406..18450, 18451..18495, 18496..18540, 18541..18585, 18586..18630, 18631..18675, 18676..18720, 18721..18765, 18766..18810, 18811..18855, 18856..18900, 18901..18945, 18946..18990, 18991..19035, 19036..19080, 19081..19125, 19126..19170, 19171..19215, 19216..19260, 19261..19305, 19306..19350, 19351..19395, 19396..19440, 19441..19485, 19486..19530, 19531..19575, 19576..19620, 19621..19665, 19666..19710, 19711..19755, 19756..19800, 19801..19845, 19846..19890, 19891..19935, 19936..19980, 19981..20025, 20026..20070, 20071..20115, 20116..20160, 20161..20205, 20206..20250, 20251..20295, 20296..20340, 20341..20385, 20386..20430, 20431..20475, 20476..20520, 20521..20565, 20566..20610, 20611..20655, 20656..20700, 20701..20745, 20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975, 24976..25020, 25021..25065, 25066..25110, 25111..25155, 25156..25200, 25201..25245, 25246..25290, 25291..25335, 25336..25380, 25381..25425, 25426..25470, 25471..25515, 25516..25560, 25561..25605, 25606..25650, 25651..25695, 25696..25740, 25741..25785, 25786..25830, 25831..25875, 25876..25920, 25921..25965, 25966..26010, 26011..26055, 26056..26100, 26101..26145, 26146..26190, 26191..26235, 26236..26280, 26281..26325, 26326..26370, 26371..26415, 26416..26460, 26461..26505, 26506..26550, 26551..26595, 26596..26640, 26641..26685, 26686..26730, 26731..26775, 26776..26820, 26821..26865, 26866..26910, 26911..26955, 26956..27000, 27001..27045, 27046..27090, 27091..27135, 27136..27180, 27181..27225, 27226..27270, 27271..27315, 27316..27360, 27361..27405, 27406..27450, 27451..27495, 27496..27540, 27541..27585, 27586..27630, 27631..27675, 27676..27720, 27721..27765, 27766..27810, 27811..27855, 27856..27900, 27901..27945, 27946..27990, 27991..28035, 28036..28080, 28081..28125, 28126..28170, 28171..28215, 28216..28260, 28261..28305, 28306..28350, 28351..28395, 28396..28440, 28441..28485, 28486..28530, 28531..28575, 28576..28620, 28621..28665, 28666..28710, 28711..28755, 28756..28800, 28801..28845, 28846..28890, 28891..28935, 28936..28980, 28981..29025, 29026..29070, 29071..29115, 29116..29160, 29161..29205, 29206..29250, 29251..29295, 29296..29340, 29341..29385, 29386..29430, 29431..29475, 29476..29520, 29521..29565, 29566..29610, 29611..29655, 29656..29700, 29701..29745, 29746..29790, 29791..29835, 29836..29880, 29881..29925, 29926..29970, 29971..30015, 30016..30060, 30061..30105, 30106..30150, 30151..30195, 30196..30240, 30241..30285, 30286..30330, 30331..30375, 30376..30420, 30421..30465, 30466..30510, 30511..30555, 30556..30600, 30601..30645, 30646..30690, 30691..30735, 30736..30780, 30781..30825, 30826..30870, 30871..30915, 30916..30960, 30961..31005, 31006..31050, 31051..31095, 31096..31140, 31141..31185, 31186..31230, 31231..31275, 31276..31320, 31321..31365, 31366..31410, 31411..31455, 31456..31500, 31501..31545, 31546..31590, 31591..31635, 31636..31680, 31681..31725, 31726..31770, 31771..31815, 31816..31860, 31861..31905, 31906..31950, 31951..31995, 31996..32040, 32041..32085, 32086..32130, 32131..32175, 32176..32220, 32221..32265, 32266..32310, 32311..32355, 32356..32400, 32401..32445, 32446..32490, 32491..32535, 32536..32580, 32581..32625, 32626..32670, 32671..32715, 32716..32760, 32761..32805, 32806..32850, 32851..32895, 32896..32940, 32941..32985, 32986..33030, 33031..33075, 33076..33120, 33121..33165, 33166..33210, 33211..33255, 33256..33300, 33301..33345, 33346..33390, 33391..33435, 33436..33480, 33481..33525, 33526..33570, 33571..33615, 33616..33660, 33661..33705, 33706..33750, 33751..33795, 33796..33840, 33841..33885, 33886..33930, 33931..33975, 33976..34020, 34021..34065, 34066..34110, 34111..34155, 34156..34200, 34201..34245, 34246..34290, 34291..34335, 34336..34380, 34381..34425, 34426..34470, 34471..34515, 34516..34560, 34561..34605, 34606..34650, 34651..34695, 34696..34740, 34741..34785, 34786..34830, 34831..34875, 34876..34920, 34921..34965, 34966..35010, 35011..35055, 35056..35100, 35101..35145, 35146..35190, 35191..35235, 35236..35280, 35281..35325, 35326..35370, 35371..35415, 35416..35460, 35461..35505, 35506..35550, 35551..35595, 35596..35640, 35641..35685, 35686..35730, 35731..35775, 35776..35820, 35821..35865, 35866..35910, 35911..35955, 35956..36000, 36001..36045