Question 60017: Please show me how to plug in the points for Y on these equations. I made up points for X: Thanks!
equations Y = 2X - 4 (0, 3, 4)
equation y = -2/3X + 4 (0, 3, 4)
Answer by funmath(2933)   (Show Source):
You can put this solution on YOUR website! Please show me how to plug in the points for Y on these equations. I made up points for X:
equations Y = 2X - 4 (0, 3, 4)
equation y = -2/3X + 4 (0, 3, 4)
You don't plug in points for y if you plug in points for x, you let x = the numbers you chose and solve for y.
y=2x-4
If x=0
y=2(0)-4
y=0-4
y=-4
(0,-4) is a point on the line.
If x=3
y=2(3)-4
y=6-4
y=2
(3,2) is a point on the line.
If x=4
y=2(4)-4
y=8-4
y=4
(4,4) is a point on the line.
:
For  Pick numbers that are divisible by 3, so that you don't have to add fractions.
for x=0
y=4
(0,4) is a point on the line.
for x=3
The point (3,2) is part of the line.
Don't choose 4, choose something like -3 for x
(-3,6) is a point on the line.
Notice that both line contain the point (3,2). If you graphed these two lines on the same graph, they would cross at (3,2)
For fun, try to figure out which line goes to which equation.
Happy Calculating!!!
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