WHAT IS THE EQUATION OF THE LINES IN SLOPE -INTERCEPT FORM ?

Answer:
y = 1x - 40
Step-by-step explanation:
Find the slope first which is the rise/run. And then you get the slope which is 1, and the slope intercept form is y = mx + b. Your y intercept is -40 so when you plug them in it makes y = 1x - 40