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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 70460: Can someone please help me with this !!! In which quadrant(s) are there no solutions for each line?
Driving down a mountain, Tom finds that he has descended 1800 ft
in elevation by the time he is 3.25 mi horizontally away from the top of the
mountain. Find the slope of his descent to the nearest hundredth.
Click here to see answer by checkley75(3666)

Question 70604: Is y=5 a horizontal line, and how.please and thank you!
Click here to see answer by stanbon(57290)

Question 70604: Is y=5 a horizontal line, and how.please and thank you!
Click here to see answer by checkley75(3666)

Question 70690: A real estate office handles an apartment complex with 50 units. When the rent per unit is $580 per month, all 50 units are occupied. However, when the rent is $625 per month, the average number of occupied units drops to 47. Assume that the relationship between the monthly rent (p) and the demand (x) is linear.
A) Write the euqation of the line giving the demand (x) in terms of the rent (p).
Click here to see answer by ankor@dixie-net.com(15647)

Question 70732: 2x+3(x-4)=2(x-3)
Click here to see answer by checkley75(3666)

Question 70699: How do I graph the equation y=x+3?

Click here to see answer by checkley75(3666)

Question 70753: what is the y-intercept of 3x+y=7

Click here to see answer by jim_thompson5910(28548)

Question 70768: The sum of two numbers is 2. If one number is subtracted from the other, their difference is 8. Find the numbers.
Click here to see answer by mathman409(67)

Question 70768: The sum of two numbers is 2. If one number is subtracted from the other, their difference is 8. Find the numbers.
Click here to see answer by bucky(2189)

Question 70768: The sum of two numbers is 2. If one number is subtracted from the other, their difference is 8. Find the numbers.
Click here to see answer by Quackpot rocks(6)

Question 70767: solve the system of linear equations
What is x?
5x+2y= -7
What is y?
x+3y=9
Click here to see answer by Quackpot rocks(6)

Question 70752: what is the y-intercept of 3x+y=7

Click here to see answer by terbear1963(43)

Question 70752: what is the y-intercept of 3x+y=7

Click here to see answer by checkley75(3666)

Question 70766: 6x+2y=7
y=2-3x
solve by substitution or another method
Click here to see answer by jim_thompson5910(28548)

Question 70815: If you have two points, and you want to find the equation of the line that runs through them, the place to start is by finding the slope.To find the slope, you figure out how far you have to move along eachaxis to get from one point to the other.

Click here to see answer by stanbon(57290)

Question 70878: Dr. Macdell's computer case measures 7 inches wide, 14 1/2 inches tall, and 16 inches deep. How much space is there inside for all those chips and drives and things?
Click here to see answer by jim_thompson5910(28548)

Question 70928: If you find a slope to be undefined can you still put the problem in y-intercept?
Click here to see answer by funmath(2925)

Question 70929: If you find a slope to be undefined is correct is it correct to say that you can still put the problem in y-intercept?
Click here to see answer by funmath(2925)

Question 70871: write equation in standard form?
y+9=-3(x-2)
Click here to see answer by funmath(2925)

Question 70953: Is (4,0) (5,4) ordered pairs solutions for 4x-y=16
Click here to see answer by bucky(2189)

Question 71003: Please help write in standard form
y=1/2x+7

Please help write in slop-intercept
3x-3y=2
Click here to see answer by piglet162431(90)

Question 70811: please help me solve this problem
Click here to see answer by mathman409(67)

Question 71086: write equation as a function in y = form.
3y = 15x - 12
Click here to see answer by checkley75(3666)

Question 71048: what is a linear equation?

Click here to see answer by checkley75(3666)

Question 71095: How do i write the equation as a function in "y =..." form
5y + 3 = 2y - 3x + 5
Click here to see answer by checkley75(3666)

Question 71102: how do i write the this equation in y...form
-2(x+3y)=18
Click here to see answer by checkley75(3666)

Question 71103: how do i write equation y=...form
5(x+y)=20+3x
Click here to see answer by checkley75(3666)

Question 71104: –7x + 1 + 8x = x + 1
Click here to see answer by checkley75(3666)

Question 71115: –3(10x – 3) + 10(3x – 3) = x – 7
Click here to see answer by checkley75(3666)

Question 71127: How do you solve a system using the addition method
x+3(y-1)=11
2(x-y)+8y=28
Click here to see answer by stanbon(57290)

Question 71012: Solve the following systems by substitution.
5x - 2y = -5
y - 5x = 3
Click here to see answer by elima(1433)

Question 71110: 3x + 7 = x^2 + k = 7x + 15
What is the value of k?
Click here to see answer by ankor@dixie-net.com(15647)

Question 71225: How can I turn this into an equation for decison makink for algebra
Housekeeper ----------- 2000 complete
Housekeeper/Inspector -------- 2001 complete
Inspector ----- 2002 complete
Inspector/Supervisor ------ 2003 complete
Head Supervisor ----- 2004 complete
Head Supervisor/ Front desk ------- 2005 complete
Housekeeping Manager ------- 2006 complete
G.M classes/ Leadership classes ------- 2006 complete
School/Business Phoenix Univ. --------- 2006-2007 Pending
Goal to be General Manager -------- 2008 Pending
Click here to see answer by stanbon(57290)

Question 71288: How do i graph this linear equation and is it a function
y=x-10
Click here to see answer by checkley75(3666)

Question 71371: How do i turn this into a y= equation?
x+3y=-6 and x=3y
Click here to see answer by checkley75(3666)

Question 71303: Can you help me solve this equation for y...then I need to no how I graph the problem
y-6=0.5x
Click here to see answer by checkley75(3666)

Question 71380: Find two linear equations that have (4,6) as a solution?
Click here to see answer by stanbon(57290)

Question 71415: We are writing the following problem in "Point Slope Form" I am stuck on this problem and would love some help.
line through (2,3) and (-5,6)
I know to find the slope I have
m=6-3/-5-2 = 3/-7
Y-Yo=M(X-Xo)

also the second problem is
line through (2,-4)
parallel to (6,2)&(-2,6)
Find the Point slope form.

Your help will be greatly appreciated.
Thanks,
Tammi
Click here to see answer by checkley75(3666)

Question 71451: Chapter 7-8 Parallel and Perpendicular Lines
Introducing the Concept: Slope and Line Relationships
Here's my question:
"Write an equation for the line containing the given point and perpendicular to the given line."
27. (0,6); y-3x=4
28. (-2,4); y=2x-3
29. (0,2); 3y-x=0
My son just started homeschooling and I am at a complete loss as to how to provide him with help on this part of the chapter.
Just an FYI: Chapter 7 "Graphs and Linear Equations" 7-8 Exercises Part B #27, #28, #29
Thank you for any help you can provide us!!!!
Click here to see answer by checkley75(3666)

Question 71453: -5x+2y=10
Click here to see answer by checkley75(3666)

Question 71452: 2x+3y=6
Click here to see answer by checkley75(3666)

Question 71701: what is -5 < x _< 4
Click here to see answer by bucky(2189)

Question 71749: I'm having trouble finding the slope of the line through the points (-3,4) and (-7, 10). Please help get me through this one.
Click here to see answer by funmath(2925)

Question 71756: 2/3x+5y=15
Click here to see answer by checkley75(3666)

Question 71768: Are these lines parallel? y=1/4x+5,y=4x-7
Click here to see answer by checkley75(3666)

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