Question 21876: I am not understanding how to graph and solve linear equations and inequalities. For example: y= -x + 8
y= 4x - 7
Answer by elima(1433)   (Show Source):
You can put this solution on YOUR website! To graph linear equations, you need to make a table of values. You choose the x and solve the equation for y. Remember you only need to points to define the line, the third is only a check.
y= -x + 8
x=0
y=-(0)+8
y=8
x=1
y=-(1)+8
y=-7
x=-1
y=-(-1)+8
y=9
So our points are;
(0,8);(1,-7);(-1,9)Hope you understand.
See if you can do the other problem?
=)
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