Now they want x intercept.. is that the slope part. for instance..
If 2x + y = 7, then the x-intercept of the graph of this equation is: -2x?

Question

Now they want x intercept.. is that the slope part. for instance..
 If 2x + y = 7, then the x-intercept of the graph of this equation is: -2x?

anonymous · Answer

if you want the x intercept you just insert a zero for y.. so you get x = 7/2

chaise · Answer

Not quiet - At the x intercept the y point on your graph is 0
Change this to y=mx+b format and then make y = 0. :)

anonymous · Answer

okay let me work it

chaise · Answer

You don't even have to put it into point-slope formula. You can just make y = 0.
When any line cuts the x axis the value for it is (x,0).

anonymous · Answer

2x + y = 7 ===> let y=0 ===> 2x=7 ===> x=7/2

anonymous · Answer

so 0 = -2x +7 
  
 -7 = -2x

so x = 7/2?

chaise · Answer

Correct.

anonymous · Answer

exactly

anonymous · Answer

ok now we're cookin

anonymous · Answer

great