Question

y varies inversely to x. If y = 7 when x = -4, what is y when x =5 ?

Answer 1

Answer:

Step-by-step explanation:

y*1/x

y=k/x where k is the constant of variation

when y=7, x=-4

7=k/-4

k=-28

when x=5

y=-28/5

note: * is used as symbol of variation