Answer:
4000 and 7000
Step-by-step explanation:
Answer: -23
y = -1x + 7
y2 - y1 / x2 - x1
9 - 0 / -2 - 7
9 / -9
= -1
y = -1x + b
0 = -1(7) + b
0 = -7 + b
7 = b
D> y = (2/5)x - 2
See attached