<span>Suppose y varies directly as x, and y=-65 when x=-26. Write a direct variation equation that relates x and y. . If "y varies directly as x" it is in the form of: y = kx where k is a constant . Using the values provided, you can find k.
y = kx -65 = k(-26) -65/(-26) = k 2.5 = k . So, our equation is: y = 2.5x</span>