Answer:
slope: 3
y-intercept: (0, -1)
Find slope:

Here given points are: (0, -1), (3, 8)

When finding y-intercept, the value of x is 0. Here given y is -1 when x is 0.
y-intercept: -1 or (0, -1)
Answer: 12 - 6
to distribute you multiply was is outside of the parentheses by was is in the parentheses
step 1. 6 * 6
step 2. 6 * -1