Answer:
Step-by-step explanation:
if it is 4.252525252525.... it is 421/99
if it is 4.255555555555... it is 383/90
gradient (slope) = -1/2
Using the gradient formula: rise over run
-42
x/7 = y
y + 9 = 3
3 - 9 = y
y = -6
-6 * 7 = x
x = -42