Question
Suppose y varies directly with x. If y = 6 when x = -2, find x when y = 15.
a. ⅕
b. 5
c. -5
d. -⅕
a. ⅕
b. 5
c. -5
d. -⅕
Answers
Damon
y = k x
6 = k (-2)
k = -3
15 = -3 x
x = -15/3
x = -5
6 = k (-2)
k = -3
15 = -3 x
x = -15/3
x = -5