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

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Question 100454: Give the coordinates of the point where each line crossed the y-axis
y=2x-3
Click here to see answer by checkley71(8403)

Question 100456: WRITE AN EQUATION FOR EACH LINE
with a slope of 2 and a y-intercept of 4
through (0,-4) and with a slope of 1.5
please help!!

Click here to see answer by checkley71(8403)

Question 100462: write an equation for the line containing each pair of points
(-2,-4) , (5,-1)
Click here to see answer by checkley71(8403)

Question 100461: write an equation for the line containing each pair of points
(-2,-4) , (5,-1)
Click here to see answer by edjones(7569)

Question 100457: WRITE AN EQUATION FOR EACH LINE
with a slope of 2 and a y-intercept of 4
through (0,-4) and with a slope of 1.5
please help!!

Click here to see answer by jim_thompson5910(28717)

Question 100457: WRITE AN EQUATION FOR EACH LINE
with a slope of 2 and a y-intercept of 4
through (0,-4) and with a slope of 1.5
please help!!

Click here to see answer by checkley71(8403)

Question 100451: y=5x+12
Click here to see answer by jim_thompson5910(28717)

Question 100450: Give the coordinates of the point where each line crossed the y-axis
y=2x-3
Click here to see answer by checkley71(8403)

Question 100424: Solve each of the following systems by substitution.
16. 5x -2y = -5
y-5x = 3
20. 8x -4y = 16
y= 2x -4
28.) 4x -12y = 5
-x + 3y= -1

Click here to see answer by checkley71(8403)

Question 100486: Solve by substitution.
38.) 10x + 2y = 7
y = -5x +3

Click here to see answer by oberobic(2304)

Question 98716: Could someone help me. This one has got me confused. Thank You.
Rewrite the equation below in general form Ax + By = C where A, B and C are the smallest integers possible and A > 0.
Enter the variable expression Ax + By separately from the constant term C.
y=(2/5)x+(2/11)
Click here to see answer by edjones(7569)

Question 100529: I've worked these problems over and over and can't seem to find the proper answer.
1. Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible. (-1, 3) and (4, -2)
I got
m = - 2 - (-3)/4 - (- 1 = -5/5 = -1
m = -1, (x1 – y1)= (-1, 3)
y - 3 = -1 (x -(-1))
y = -x + 1 + 3
y = -x + 4
Is this right???
2. 1. Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible. (-2, -3) and (2, 0)
I got
m = 0 - (-3)/2-(-2) = 3/4
m = 3/4, (x1, x2) = (-2, -3)
y - (-3) = 3/4 (x-(-2)
y = 3/4x + 2 - 3
y = 3/4 x -1
I know the answer is supposed to be y = 3/4 x - 3/2, but I can't get it... What am I doing wrong???
Click here to see answer by stanbon(57984)

Question 100563: Did I do this correctly? I need to find the slope for a line passing through (4,-5) and (3,-4)
I have -5-4/3-4 = 1/-1 = -1
Could -1 be the slope?
thanks!!
Click here to see answer by tutorcecilia(2152)

Question 100562: I need help finding the slope of the line passing through (-2,4) and (-2,-5).
can anyone help me please? I seem to find myself with no solution for this one.
I have -5-4/-2 +2 = -9/0 Could that be right?????????????
Click here to see answer by bucky(2189)

Question 100646: i just need help my teacher seriously confused to me today
directions: find the x intercept and y intercept of the graph of each equation and graph each equation now he gave us a formula the slop formula of (f)mx+b
3x=y how do i write in slope formula what am i suppose to do i have absoulutley no clue [please im desperate]
Click here to see answer by stanbon(57984)

Question 100666: Find m and b so that (-3,4) is a solution of the system?
Click here to see answer by checkley71(8403)

Question 100724: What are lines that have the produce of -1 as their slopes?
Click here to see answer by edjones(7569)

Question 100752: Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible.
Rewrite in standard form.
(0,5) m = -3/5
Click here to see answer by stanbon(57984)

Question 100751: Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible.
Rewrite in standard form.
(0,5)m=-3/5
Click here to see answer by edjones(7569)

Question 100773: In direct variation, is it possible for one variable to get bigger as the other variable decreases?
Click here to see answer by stanbon(57984)

Question 100796: 1.) Find the slope of the line connecting P1 (-6,-8) and P2 (-3,4)
a. 4 b. -3 c. -4 d. 3/4
Click here to see answer by jim_thompson5910(28717)

Question 100811: what is the slope, y-intercept and b 4x+y=1
i don't know how to find it.
thank you
Click here to see answer by jim_thompson5910(28717)

Question 100819: Write an equation in slope -intercept form for the line that contains the given point is parallel to the given line. (-3,1);y=-5x+2
Click here to see answer by jim_thompson5910(28717)

Question 100807: Solve system by substitution method.
3x-4y=x-y+4
2x+6y=5y-4
I've been trying to figure this one out for about an hour on scratch paper.

Click here to see answer by scott8148(6628)

Question 100937: 500+3x=245+5x
Click here to see answer by tutorcecilia(2152)

Question 100960: Graph these linear equations using three points
x + 3Y =3
Click here to see answer by tutorcecilia(2152)

Question 100904: Neena drew a rectangle with an area of 108 square millimeters. Its length was three times as long as its width. What was the length and width of Neena's rectangle?
Click here to see answer by doukungfoo(195)

Question 101059: Find the slope of the line through the following pairs of points.
(-5,-3) and (-5,2)

Click here to see answer by edjones(7569)

Question 101215: Find the slope of the line through the following pairs of points.
(-5, -3) and (-5, 2)
Click here to see answer by jim_thompson5910(28717)

Question 101215: Find the slope of the line through the following pairs of points.
(-5, -3) and (-5, 2)
Click here to see answer by stanbon(57984)

Question 101214: Find the slope and y-intercept of the line:
Ax + By = C
Click here to see answer by stanbon(57984)

Question 101307: A 30% salt solution is prepared by mixing a 20% salt solution and a 45% salt solution. How many litres of each must be used to produce 60 L of the 30% salt solution?
Click here to see answer by stanbon(57984)

Question 101296: Write the equation of the line through points (-2,3) and (4,8)
Click here to see answer by jim_thompson5910(28717)

Question 86152: 2(x - 3) - 3(x +5) = 3(x -2) -7

Click here to see answer by jenna1026(3)

Question 101381: Graph y = –x – 2
Click here to see answer by doukungfoo(195)

Question 101380: Graph by first solving for y.
x + 2y = 8

Click here to see answer by peices3(2)

Question 101436: Hello out there,I really need some help with some tough problems,the first one is,Solve the system of linear equations by graphing:4x-y=6 and 3x+y=1.The next one is,Use substitution to solve : 2x+y=7 and 5x-2y=4.The third one is,Use substitution to solve: x=3y-2 and 2x+4y=16.And the last one is,Find the solution of the system y=x^2+5 and y=2x+4.Thanks to whoever can help.
Click here to see answer by vertciel(183)

Question 101446: 1.) Find the midpoint and the slope of the segment joining the two points:
(6,-8) (-5,4)
2.)Find the domain and range of f(x)= x +2/x and include a graph of the function
**/=fraction bar

Click here to see answer by stanbon(57984)

Question 101525: Find the slope of the line through the points.
30) (-5, -4) and (3, -4)
Click here to see answer by bucky(2189)

Question 101524: Find the x- and y-intercepts for the equation. Then graph the equation.
29) 8y - 2x = -4
Click here to see answer by bucky(2189)

Question 101519: Find the x- and y-intercepts for the equation. Then graph the equation.
23). 6x - 36y = 36
Click here to see answer by Adam(64)

Question 101521: Find the slope of the line through the points.
25). (1, 5) and (1, -3)
Click here to see answer by jim_thompson5910(28717)

Question 101506: Find equation for a line Express answer using slope intercept perpendicular to the line y=2x-5 points (-1,-2) how do I do this problem?
Click here to see answer by jim_thompson5910(28717)

Question 101659: solve. Collect the variable terms on the left side of the inequality.
2x-5<5x-11
Click here to see answer by stanbon(57984)

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