Question

If y varies directly with x and y = -7 when x = -1, find x when y = -84.
A. 84
B. 7
C. -12

Answer 1

x=-12

Answer 2

c

Answer 3

THank you

Answer 4

if it varies directly, you can set it up as a direct proportion
-1/-7 = x/-84
cross multiply
-7x = (-84)(-1)
-7x = 84
x = 84/-7
x = -12