Question

how do you find y intercept?

Answer 1

The y intercept is when X=0, subsitute X into your equation and the value of Y will be your y intercept, i.e. (0,Y). Assuming it has one. if your equation was
y =5x + 2, then your y value when x=0 would be
y =5*0 + 2
y = 0 + 2
y = 2