Question

if a=0, what are the intercepts of y=ax+b in the terms of a and b

Answer 1

If a = 0, then y = b for all x.
So y = b for x = 1.
And y = b for x = -100.
And y = b for x = 0, which is the y-intercept.

Answer 2

If y = b, then this is a horizontal line.
So it will be parallel to the x-asis.
So if y = b, and b is not zero, there will be no x-intercepts.
But y = 0, then the line IS the x-axis, so the whole line intersects the x-axis.

Answer 3

ok thank you