Question

A.

Suppose that y varies with x, and y = 15 when x = 6. Write an equation
B.
Find y when x = 7
whats y?

Answer 1

y is 15

Explanation:

Answer 2

y = 5/2x

y = 35/2

Explanation:

direct variation

y = kx

Substitute the values for x and y

15 = k(6)

Divide each side by 6 yo find k

15/6 = k

5/2 = k

The equation is y = 5/2 x

Now we know x =7

y = 5/2(7)

y = 35/2