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

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Question 1085063: 2y+5x=4 ,write equation in the former of y=mx+be, what is the year intercep, what is the gradient, draw the graph of 2y+5x=4(indictate y,intereception and x,intercepthe clearly, thanks.
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Question 1085107: What is the nature of the graph of number (y) of gallons of fuel left in the tank of a car moving at constant speed, plotted against time (x)?
Click here to see answer by josmiceli(19441) About Me 

Question 1085197: Jessica is walking home from a friend's house. After two minutes she is 1.2 miles from home. Seventeen minutes after leaving, she is 0.7 miles from home. What is her rate in miles per hour?
Thanks in advance...

Click here to see answer by Alan3354(69443) About Me 
Question 1085197: Jessica is walking home from a friend's house. After two minutes she is 1.2 miles from home. Seventeen minutes after leaving, she is 0.7 miles from home. What is her rate in miles per hour?
Thanks in advance...

Click here to see answer by josgarithmetic(39617) About Me 
Question 1085197: Jessica is walking home from a friend's house. After two minutes she is 1.2 miles from home. Seventeen minutes after leaving, she is 0.7 miles from home. What is her rate in miles per hour?
Thanks in advance...

Click here to see answer by ikleyn(52781) About Me 
Question 1085197: Jessica is walking home from a friend's house. After two minutes she is 1.2 miles from home. Seventeen minutes after leaving, she is 0.7 miles from home. What is her rate in miles per hour?
Thanks in advance...

Click here to see answer by MathTherapy(10552) About Me 

Question 1085212: The average annual tuition and fees at all 4-year institutions in the US in 2002 was $12,160 and in 2009 was $ 20,002. Let y be the average tuition and fees in the year x, where x = 0 represents the year 2002. Write a linear equation, in slope-intercept form, that models the growth in average tuition and fees at all 4-year institutions in the US in terms of the year x.

Click here to see answer by stanbon(75887) About Me 

Question 1085251: Denominator of fraction is 6 more then the numerator. If one is added to numerator and 3 is subtracted from the denominator it becomes 3/4. Find fraction.
Click here to see answer by Boreal(15235) About Me 

Question 1085288: Find an equation of the line passing through the pair of points. Write the equation in the form Ax+By=C.
(-2,2), (-3,-8)

Click here to see answer by Boreal(15235) About Me 

Question 1085301: I need help making the table to the following question.
You and your friend can make either small bracelets that yield a profit of $10 each, or large bracelets that bring in $15 of profit each. It takes 8 minutes to design small bracelets but only 6 minutes to design the large bracelets. It also takes 8 minutes to construct a small bracelet but does take longer, 12 minutes, to construct a large bracelet. You'll be doing the design work, you only have 168 minutes to spend. Your friend will be doing the construction work, but he has only 240 minutes to spend. For this part of the assignment create a table that summarizes the information above. Your table should list both the small and large bracelet, the time needed to design and to construct each, and the maximum amount of time that can be spent on each activity. Use the variable X to represent the small bracelets and Y to represent the large bracelets.


Click here to see answer by ikleyn(52781) About Me 

Question 1085315: I need help guys Are these linear or non-linear equations?
3x-6y=12
And
X^2+y^2=25
Your help will be very much appreciated

Click here to see answer by ikleyn(52781) About Me 

Question 1085335: 4x+y=3 and (2k-1)x +(k-1)y=2k+1 is inconsistent ,find k
Click here to see answer by KMST(5328) About Me 

Question 1085374: the cost of producing 4 metal units is $204.80, The cost of producing 8 units is 209.6. what is the cost to produce 12 units?
Click here to see answer by fcabanski(1391) About Me 

Question 1085407: Find the vertex for the following equation:
y=-3x^+6x+5

Click here to see answer by ikleyn(52781) About Me 

Question 1085428: NEED HELP GRAPHING F(X)= -2/3X-2
I KNOW THE Y INTERCEPT IS (0,-2)AND SLOPE IS -2/3

Click here to see answer by Boreal(15235) About Me 
Question 1085428: NEED HELP GRAPHING F(X)= -2/3X-2
I KNOW THE Y INTERCEPT IS (0,-2)AND SLOPE IS -2/3

Click here to see answer by josmiceli(19441) About Me 

Question 1085426: how do you graph y=-2/3x-4 ??
I STARTED AT THE Y INTERCEPT 0,-4
THEN WENT DOWN TWO AND TO THE RIGHT THREE TIMES
IS THAT CORRECT?

Click here to see answer by Boreal(15235) About Me 

Question 1085424: a) find the slope of the line passing through (8,-4)and (6,-2)
B) use the point slope form y-y1= m (x-x1) to find the equation of the line.
FOR A) slope I got 1
y2-y1/x2-x1
-2--4/6-8 = 2/2 which equals 1
FOR B) Y-Y1 = M (X-X1)
Y--4=1(X-8)
Y+4=1(X-8)
Y+4-4=1(X-8)-4
Y=1x-12
B) Y=1X-12
ARE MY ANSWERS CORRECT FOR A AND B???
thank you

Click here to see answer by Boreal(15235) About Me 
Question 1085424: a) find the slope of the line passing through (8,-4)and (6,-2)
B) use the point slope form y-y1= m (x-x1) to find the equation of the line.
FOR A) slope I got 1
y2-y1/x2-x1
-2--4/6-8 = 2/2 which equals 1
FOR B) Y-Y1 = M (X-X1)
Y--4=1(X-8)
Y+4=1(X-8)
Y+4-4=1(X-8)-4
Y=1x-12
B) Y=1X-12
ARE MY ANSWERS CORRECT FOR A AND B???
thank you

Click here to see answer by josmiceli(19441) About Me 
Question 1085424: a) find the slope of the line passing through (8,-4)and (6,-2)
B) use the point slope form y-y1= m (x-x1) to find the equation of the line.
FOR A) slope I got 1
y2-y1/x2-x1
-2--4/6-8 = 2/2 which equals 1
FOR B) Y-Y1 = M (X-X1)
Y--4=1(X-8)
Y+4=1(X-8)
Y+4-4=1(X-8)-4
Y=1x-12
B) Y=1X-12
ARE MY ANSWERS CORRECT FOR A AND B???
thank you

Click here to see answer by MathTherapy(10552) About Me 

Question 1085432: USE POINT SLOPE FORM
SLOPE -2/3, THROUGH (-4,7)
NEED HELP SOLVING THE PROBLEM

Click here to see answer by MathLover1(20849) About Me 

Question 1085441: 5y-20=7x
20y=28x+40

Click here to see answer by ikleyn(52781) About Me 

Question 1085436: Determine whether the two equations represent lines that are parallel, perpendicular or neither
Y=1/2x+5
-2x+4y=7

Click here to see answer by josgarithmetic(39617) About Me 

Question 1085479: f(x)= x^2-3x+9 and g(x)= -2x^2+5
find a)(f+g)(x)
Find b)(f-g)(1)
for A I got -x^2-3x+14
NEED HELP WITH B

Click here to see answer by MathLover1(20849) About Me 

Question 1085496: Carl invests $10000, partly in a secure GIC at 5% and the rest in a mutual fund that he thinks will earn 7.5%.
If he expects to earn the same amount of interest in both, how much did he invest at each rate?

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

Question 1085553: I have a assignment on making two linear equations from two animals racing a fair race. The two I picked were African wild dog 45mph and coyote 43mph. How would I make that into an equation. I am so lost and confused
Click here to see answer by Theo(13342) About Me 

Question 1085580: Min: C=19x+15y
Subject to: x+2y_>2
X+2y_<10
2x+y=10
X_>0 ; y_>0

Click here to see answer by Theo(13342) About Me 

Question 1085554: I have an assignment and it's about a fair race between two animal and I need to make their out come into a linear equation. First speed 45 mph second is 43mph. Can you please help me
Click here to see answer by josmiceli(19441) About Me 

Question 1085708: 15m/s to km/h
Click here to see answer by MathLover1(20849) About Me 

Question 1085700: If (y+2/4 )+yś3/8 =1/y=
Click here to see answer by Fombitz(32388) About Me 

Question 1085714: suppose 15 quarts of a solution that is 35% antifreeze is mixed with 5 quarts of a solution that is 72% antifreeze
A)How many quarts of antifreeze are in the resulting mixture?
B)what percentage of the resulting mixture is antifreeze?

Click here to see answer by josmiceli(19441) About Me 
Question 1085714: suppose 15 quarts of a solution that is 35% antifreeze is mixed with 5 quarts of a solution that is 72% antifreeze
A)How many quarts of antifreeze are in the resulting mixture?
B)what percentage of the resulting mixture is antifreeze?

Click here to see answer by jorel1380(3719) About Me 

Question 1085741: C AND D ARE SETS OF REAL NUMBERS
C{x|x<3}
D{x|x< has a line under 9}
C U D =
C DOWNWARD U D =
UNION AND INTERSECTION INTERVALS

Click here to see answer by math_helper(2461) About Me 

Question 1085773: f(x) = -10x-18 and g(x) = -3x find (f-g)(x)
Click here to see answer by Fombitz(32388) About Me 

Question 1085813: For the given pair of​ equations, give the slopes of the​ lines, and then determine whether the two lines are​ parallel, perpendicular, or neither.
16x-15y=9
16x+20y=-6

Click here to see answer by MathLover1(20849) About Me 

Question 1085818: For which value of K the system of equations x+y=2 and x-y=K has an unique solution?
Click here to see answer by ikleyn(52781) About Me 

Question 1085885: y=3/7x+2
perpendicular(-7,4)
parallel(-7,4)
equation of perpendicular
equation of parallel

Click here to see answer by ikleyn(52781) About Me 
Question 1085885: y=3/7x+2
perpendicular(-7,4)
parallel(-7,4)
equation of perpendicular
equation of parallel

Click here to see answer by josgarithmetic(39617) About Me 

Question 1085892: -x-4y+8=0
x+4y=0
y=?

Click here to see answer by ikleyn(52781) About Me 

Question 1085920: The value of K for which the system of equation 2X+3Y=5and 4X+KY=10 has an infinite number of solution is....

Click here to see answer by MathLover1(20849) About Me 

Question 1085943: Please may you help me immediately to solve this problem: a.suppose the international airmail on articles/packets to countries in zone 1 are given below.
Weight (w) cost in kina
Up to 50 55
Up to 150 110
Up to 250 180
Up to 1kg 290
Up to 2kg 450
i.write the cost function,in function notation for the above.
ii.Draw the graph of this function
iii.state the domain and range of this function
iv.does the graph really represent a function? Justify you answer.

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

Question 1085944: y=-5
Click here to see answer by ikleyn(52781) About Me 

Question 1085945: in graphing order pairs what is y=4x
Click here to see answer by rapture(86) About Me 

Question 1085966: How do I find equations for lines parallel or perpendicular to y = ⅔ x + 2; (6, -3)
Click here to see answer by Boreal(15235) About Me 

Question 1085977: Find the value of k the system has infinite number of solution x+(k+1)y=5;(k+1)x+9y=8k-1

Click here to see answer by ikleyn(52781) 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