Answer:
b=-79
Step-by-step explanation:
(10,11) means x=10,y=11
m=9 b=?
y=mx+b
Make b the subject of formula
b=y-mx
b=11-9(10)
b=11-90
1. -11 2.-3
Make sure to simplify the equation..
example: 3(2x - 7) = 6x - 21
because 3 x 2 = 6 and 3 x 7 = 21
a
The answer is C I believe