Question

Number 16

Answer 1

A = 4
B = -1/2

Answer 2

I don't know why this course introduces these strange A and B formulas

Answer 3

I don't either

Answer 4

Don't they explain why they introduce such formulas when you're in class?

Answer 5

Ive only had this class 3 days so far

Answer 6

4 and -1/2 arent the answers by the way

Answer 7

The given line y=2x has slope 2 so the slope of the perpendicular is -1/2. Also the perpendicular contains (5,15). So let us plug that information into the equation they gave us for the perpendicular.
y=A+B(x-3)
15=A-1/2(5-3)
15=A-1/2(2)
15=A-1
16=A
So the answer is A = 16 and B = -1/2

Answer 8

For some reason, I thought the point was 5,3.

Answer 9

Thanks Mertsj