Question

Write a direct variation equation that relates the two variables. (no spaces in answer- leave improper)

(b)
Find y when x = 21

(a)
Suppose y varies directly as x, and y = 7 when x = 2

Answer 1

73.5?

Explanation:

I don't know this for sure, but if 7 equals 2 * 3 + 1 (half of one) then if x were the equal 21, then it would be 21 * 3.5, which equals 73.5.

UNLESS, OF COURSE Y isn't 3.5 * x, and is rather five plus X