Question

The point (12, 9) is included in a direct variation. What is the constant of variation?

1/2
3/4
1
2

Answer 1

k = 3/4

Explanation:

Direct equation is represented by y = k(x) where (x, y) is point and k is the constant variation.

• given (x, y) = (12, 9)

y = k(x)

(insert values)

9 = k(12)

k = 9/12 = 3/4