Question

In a direct variation, y is negative eighteen when x is 9. What is y when x equals negative six?

Answer 1

so basically y=kx where k=constant, so first of all you have to find the constant
-18 = 9k , so that means that k = -2
now substitute back into the formula with the new value of x and your k :
y = -2 * -6 = 12

Answer 2

ooh. Thank you so much. @Purplerainbowcherry