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=ky
put y=-7 and x=-1
k=1/7
now put y=-84
x=-84/7
x=12
C

Answer 2

oops x=-12 missed - sign

Answer 3

Thank you very much for your help @ArslanQureshi ! :)

Answer 4

np :)