how do you solve y-intersect

y=x+4

y=-2x-2

I bet you mis-spelled y-intercept.

 

For y-intercept:

 

1) Turn it into the form of y = ax + b, your questions are already in that form so no need to change anything.

 

2) Look for the constant term, which is b in y = ax + b, that is the y-intercept.

 

For the first question, y = x + 4, the constant term is 4, so the y-intercept is 4.

 

For the second question, y = -2x - 2, the constant term is -2, so the y-intercept is -2.

 

Think about it: Why the y-intercept is the constant term?