Answer:
y = 1/2x - 9
y = 1/2x - 9/2
Step-by-step explanation:
if the x-intercept is (9,0) and the slope is 1/2 we can find the y-intercept ('b'):
0 = 9(1/2) + b
0 = 9/2 + b
-9/2 = b
