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

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Question 567187: find the slope of the line through each pair of points, if possible, and based on the slope, indicate whether the line through the points risess from left to right, falls from left to right, is horizonal, or is vertical (-4,1)and(-3,4)and (1.5,2.6)and(0.5,(3.6)
Click here to see answer by stanbon(57346) About Me 

Question 567435: Which is a parallel line to 3x-y=-9?
-6x-y=-9
-x+3y=-9
-6x+2y=-9
-6x-2y=-9

Click here to see answer by josmiceli(9678) About Me 

Question 567431: what is the slope intercept form of 7x+6y=1?
Click here to see answer by nerdybill(6958) About Me 

Question 567432: what is th slope of y=-1.5x?
Click here to see answer by nerdybill(6958) About Me 

Question 567501: What is the equation of the line that passes through (-2,3)and is parallel to 2x+3y=6?
Click here to see answer by mananth(12270) About Me 
Question 567501: What is the equation of the line that passes through (-2,3)and is parallel to 2x+3y=6?
Click here to see answer by nyc_function(2733) About Me 

Question 567427: which of the following represents a lie perpendicular to 9x-3y=7?
-81x-3y=7
-81x-27y=7
-3x+9y=7
27x+81y=7

Click here to see answer by mananth(12270) About Me 

Question 567511: i have to graph the solution set y is less than 1/3 x -3. i know how to get y=0,-3 and m=1/3 i know how to graph those points but am stock after that,
please help

Click here to see answer by stanbon(57346) About Me 

Question 567569: 3/2x +2 = 1/2-1/2x
Click here to see answer by MNSue(6) About Me 

Question 567553: Passing through (-3,-5) parallel to the graph of 3x-2y=7
Click here to see answer by mananth(12270) About Me 

Question 567591: Obtain an equation of a line with point -3,-2 & 1,7.show solution pls.thank you
Click here to see answer by nerdybill(6958) About Me 

Question 567748: Line A passes through the points (2k+3,4k-6) and (-2,16). Find the value of k, if line A has a slope of 0.
Click here to see answer by josmiceli(9678) About Me 

Question 567799: What is the slope of g(x)=2f(x)
Click here to see answer by stanbon(57346) About Me 
Question 567799: What is the slope of g(x)=2f(x)
Click here to see answer by richard1234(5390) About Me 

Question 567807: graph and plot: x=696/67, y=-180/67
Click here to see answer by Alan3354(30993) About Me 

Question 567817: write an equation of the line containing the given point and perpendicular to the given line (0,6); 2x+5y=8
Click here to see answer by solver91311(16885) About Me 

Question 567787: Find an equation of the line containing the given pair of points (2,5) and (6,7)
Click here to see answer by jim_thompson5910(28595) About Me 

Question 567863: linear equation whose graph has incicated slope and passes through given point, slope 6, point (-4,1)
Click here to see answer by jim_thompson5910(28595) About Me 

Question 567773: find an equation of the line that contains the following pair of points (4,1) (1,3)
Click here to see answer by jim_thompson5910(28595) About Me 

Question 567947: which equation describes a line with slope 12 and y intercept 4
Click here to see answer by Earlsdon(6287) About Me 

Question 567977: Equation of the line perpendicular to 4x-6y=5 containing (4,2)
-6y=-4x+5
y=-4/6x+-5/6
y=2/3x-5/6
m=2/3

y=-3/2x+b
2=-3/2(4)+b
2=-12/2+b
2=-6+b
y=-3/2x+8


Find the coordinates of the point of intersection of the perpendicular lines in the problem above.
Would love to see this step by step how to solve this, as I have many more problems just like it.
Thank you so much!
Joy

Click here to see answer by KMST(1868) About Me 

Question 568098: What is the equation in slope-intercept form of the line through (1,-3) that is perpendicular to y=5?
Click here to see answer by Edwin McCravy(8909) About Me 

Question 568170: Write an equation of the line containing the given point and perpendicular to the given live(5,9) 3x+y=4
Click here to see answer by mananth(12270) About Me 

Question 568178: identify the slope and y-intercept of the line with the given equation
y= -1/3x+6

Click here to see answer by richard1234(5390) About Me 

Question 568280: The costs C and income I for making and selling T-shirts with a school logo are given by the equations C=$535+4.50n and I=$12n, where n is the number of T-shirts.
a. How many T-shirts must be bought and sold to break even? Explain. I got that the answer to this one is $72 as you cannot make 71.3 shirts.
b. Suppose only 50 shirts are sold. Is there a profit or loss. I said Loss.
C. Suppose the income is $1,200. Is there a profit or loss. I said profit.
WHERE I NEED HELP
d. i. For each equation, find the coordinates of a point that lies on the graph of the equation.
ii. What information does this point give?
iii. Describe how to use the equation to see that the point will be on the graph.
I can't remember how to put these equations on a graph.
Please help. Thank you

Click here to see answer by stanbon(57346) About Me 

Question 568327: Help please: I have answered some already. Please correct me if I'm wrong.
Mark the following statements involving exponents as 'True' or 'False'.
1) (x+y)^-2=x^-2+y^-2 --- False
2) (a^3)(a^5)=a^15 --- True
3) (b^2)^4=b^6 --- False
4) (xy)^3=x*y^3 --- False
5) [(a^2)b^5)]^3=ab^30 -- ???

Click here to see answer by Theo(3464) About Me 

Question 568319: write an equation in the slope-intercept form for the line passing through (3, 5) and (8, 15)
Click here to see answer by mananth(12270) About Me 

Question 568372: 7x + 3y = -2
-7x - 7y = 14

Click here to see answer by mananth(12270) About Me 

Question 568443: Solve for y 2x+15y=5
Click here to see answer by jim_thompson5910(28595) About Me 

Question 568540: write an equation that describes the line that passes through [-3,1] and is parallel to the line described by y= 4x + 1 ?
Click here to see answer by Tatiana_Stebko(1326) About Me 
Question 568540: write an equation that describes the line that passes through [-3,1] and is parallel to the line described by y= 4x + 1 ?
Click here to see answer by nyc_function(2733) About Me 

Question 568739: What would be the easiest way to solve y = 2x - 2 and y =-x + 5
Click here to see answer by solver91311(16885) About Me 

Question 568784: How do I figure out how to find the slope of the line containing the following points of (5/6,-2) and (-1/3, -1/3)?
Click here to see answer by josmiceli(9678) About Me 

Question 568796: What is the slope of each line that has the description given:
y = 3/4x + 7
2x + 4y = 8
5.1476x + 5.1476 = 15
y - 3 = 7/13 (x-4)
y - 7.3591 = 7/13 (x-4.0856)

Click here to see answer by KMST(1868) About Me 

Question 568908: Please asap

Find the slope of the line.
3x - 2y = 1

A. -2/3
B. -1/2
C. 3/2
D. -3/2

Click here to see answer by jim_thompson5910(28595) About Me 

Question 568918: write the equation of a line parallel to 4x+5y=20 and passing through (2,1)
Click here to see answer by mananth(12270) About Me 

Question 568907: Please asap

Determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
3x - 8y = -6
32x + 12y = -6

Click here to see answer by mananth(12270) About Me 

Question 568910: A company predicts that it will sell y units of its product if it charges x dollars for it using the formula y=300-2.5x. In whole dollars, how much should the company charge for the product if it wants to sell 175 units.
Click here to see answer by lwsshak3(6505) About Me 

Question 568940: Ok So my question is very simple
X-Y=3
X+Y=7
After I put it in slope intercept form I get
-Y=-X+7
Y=-X+3
Ho do I get rid of that negative Y?

Click here to see answer by Theo(3464) About Me 

Question 569035: Write the equation of a line parallel to and passing through (2,1).
Click here to see answer by Alan3354(30993) About Me 

Question 569051: x/5+9=4
Click here to see answer by jim_thompson5910(28595) About Me 

Question 569058: 78=-2(m+3)+m
Click here to see answer by Maths68(1474) About Me 

Question 569045: What is the equation of the line containing (-6, 5) and having a slope of 2/3?
I think I have the right answer out of 4 choices (I chose 2x - 3y = -27), but I'm not sure how I would have found that without trying the numbers -6 and 5 in the x and y spots of the equation.

Click here to see answer by josmiceli(9678) About Me 

Question 568948: How would you find the missing numbers in the slopes (x) and (y) and it's (m) ?
1. ( n , 11/2 ) ( - 1/4 , 0 )
m = -22
2. ( 4 , n ) ( 1 , a-b)
m = 2b/3

Click here to see answer by KMST(1868) About Me 

Question 569061: what is the slope of a line perpendicular to y = 2?
Click here to see answer by josmiceli(9678) 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, 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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, 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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, 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