In the expression a = k/b, what is k

k is the constant of variation.

Step-by-step explanation:

In direct variation:

In inverse variation:

In both cases k is the constant of variation

The given equation is

We need to find the value of k in this equation.

First we have to isolate k on one side of the equation.

Multiply both sides by b to isolate k on right side.

Cancel out the common factors.

Interchange the sides of the equation.

It means a and b are inversely proportional.

Therefore, the k is the constant of variation.

< 4, -5>

step-by-step explanation:

starting from g. we move 4 right and then 5 down to get to h. that means the vector is < 4, -5>

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10