Question

please help

Answer 1

Start out by checking the slope between each pair of points to make sure it is a constant.

Answer 2

Slope = (change in y)/(change in x)

Answer 3

For number 1 that would be (12-18)/(10-15)=-6/-5=6/5
Therefore the slope is 6/5
Checking the second pair of points: (18-24)/(15-20)=-6/-5=6/5
So the slope is the same and it is a direct variation and since 6/5 = 1/2, the equation is
y = 1.2x

Answer 4

Find the slope like before.

Answer 5

The change in y is 24-8 = 16
The change in x is 32-16=16
16/16=1

Answer 6

Now you do the second pair of points.

Answer 7

What did you get when you did (8-6)/(16-8) ???

Answer 8

Is that the same as the pair of points I did?

Answer 9

The change in y is 24-8 = 16
The change in x is 32-16=16
16/16=1

Answer 10

What is the matter with you? Is .25 the same as 1?

Answer 11

Then why do you say yes they are the same?

Answer 12

So since the slope is not the same, it cannot be a direct variation.

Answer 13

yw

Answer 14

And if you thought it was D, why did you post this:
So it would be B? @Mertsj