Question

Match the vocabulary word to its correct definition

1) Constant of variation
2) Direct variation
3) Rate of change

A) how the dependent variable changes with respect to the independent variable
B) the value of k in a direct variation, y = kx
C) a function of the form y = kx where k is not zero

Answer 1

Answers are below:
1. B
2. C
3. A

Answer 2

Constant of variation: the value of k in a direct variation, y = kx

K is the constant which says how y varies with x.

Direct Variation: A function of the form y = kx, where k is not zero.

Here the relation between y and x is a direct variation.

Rate of change : how the dependent variable changes with respect to the independent variable.

In this case, the rate is that k times x is equal to y.