Direct & Inverse Variation - 9A & 9B

If y = kx, for a positive constant value k, the variable y is said to vary ________ as x.

Constant of variation is also denoted by the letter_.

What is the constant of variation, k, given this table of values?

• k = 6

• k = 1/6

• k = 7

• k = 1/7

Given this table of values and constant of variation, k = 7, what is the variation equation?

Given this table of values and our constant of variation, k = 7, what does y = ? when x = 5?

• y = 9

• y = 35

• y = 25

• y = 7

Given this table of values and our constant of variation, k = 7, what does x = ? when y = 63?

• x = 9

• x = 35

• x = 25

• x = 7

Given this table of values and y is proportional to x², what is the constant of variation?

• k = 3

• k = 1/3

• k = 4

• k = 1/4

Given this table of values, y is proportional to x², and the constant of variation is k = 3, what is the variation equation?

Given this table of values, y is proportional to x², and y = 3x² what are the missing values in this table?

If y = k/x, for a positive constant value k, the variable y is said to vary ________ as x.