Answer:
Where is the graph?
Step-by-step explanation:
400 should be the answer. Hope this helps!
The answer would be it has one solution
I think that the answer is 8
if you want to check if it is right input 8 in place of b
Answer:
y=-3x+5
Step-by-step explanation: y=mx+b
to find slope (m) use the equation 
so
= -3
to find b
use y=mx+b
-1=-3(2)+b
-1=-6+b
5=b
Hope this helps :)