Suppose y varies directly with x. If y = - 4 when x = 8, what is the equation of direct variation? Complete the steps to write the equation of direct variation. Start with the equation of direct variation y = kx. Substitute in the given values for x and y to get. Solve for k to get. Write the direct variation equation with the value found for k. The equation is

Question

Stud

6 August, 05:26

+2

Answers (1)

Know the Answer?

Nyasia Allen · Answer 1

Y=kx

in this case, y=-4, x=8, k is the constant which we need to find

-4=8k =. k=-1/2

so the equation is y = (-1/2) x