Answer:13
Step-by-step explanation:
Step-by-step explanation:
STEP 1
Calculate the slope from 2 points.
STEP 2
Substitute either point into the equation. You can use either (3,7) or (5,11)
STEP 3
Solve for b, which is the y-intercept of the line.
STEP 4
Substitute b, -1, into the equation from step 2.
Answer:

Step-by-step explanation:
Given
1: 5x + 20
2: Opposite of 20
Required
Find their sum
Suppose that a is a number; The opposite of a is -a. So, the opposite of 20 is -20.
Having said that:
The required sum is:

Remove bracket


Answer:
D
Step-by-step explanation:
if you look at the first, second, and third it makes a crooked line. Linear equations MUST have a straight line, or it is not a linear function.