Answer:
The slope is
.
Step-by-step explanation:
Choose 2 points on the graph.
(7,3) and (2,2)
Use slope formula: 
=
The slope is
.
You move the decimal four spaces to the left
Answer: f^-1(x) = (y - 7)/11
Explanation:
f(x) = 11x + 7
y = 11x + 7
y - 7 = 11x
(y - 7)/11 = x
Four spaces down: -4
Two spaces right: +2
So it will be (-4, 2)