You need to simplify it first.

Use distribution

y=mx+b
m=slope
your slope is -4 :)
13
Because the exponent is really just how many factors you have.
For example 2 to the power 5 would have 5 factors in expanded form.
Answer:
See explanation
Step-by-step explanation:
Given the function 
1. To reflect the graph of the function f(x) over the y-axis, you should change the slope of the line in opposite. The slope of the function f(x) is 7, so the slope of the reflected function will be -7 and the expression of the reflected function will be

2. To translate the function g(x) 3 units left, add 3 units to x, thus the expression for the function will be

See attached diagram for details.
-24x + 8y = 72
-29x = 58
X=-2
Y=3