Question

How to u determine the y intercept?

Answer 1

Using the slope-intercept form, you can find it out.
Slope = 1.25
Y - intercept = ?
y = mx + b
40 = - 1.25(60) + b
40 = - 75 + b
40 + 75 = b
b = 125
So, the y - intercept is (0, 125)