Question

The function f(x) varies inversely with x and f(x)=-10 when x=5. What is the inverse variation equation?

Answer 1

@Daniellelovee @ijlal

Answer 2

y = k/x

Answer 3

-10=k/5

Answer 4

Whenever the function is inversely proportional it is the case of \[y \alpha \frac{ 1 }{ x }\]

Answer 5

0.5

Answer 6

but than its inverse

Answer 7

just replace the proportionality sign and replace it with a constant \[y=k/x\]

Answer 8

-10*5=-50
y=-50/x

Answer 9

-10=k/5
so k=-50 so the equation becomes \[f(x)=-50/x\]

Answer 10

so it is f(x)=-50/x

Answer 11

yep as @Daniellelovee and me said it :)

Answer 12

yes I think so :)