Question

If y varies inversely as the square of x, and y=7/4 when x=1, find y when x=3

a. y=1/3x^2; y(3)=1/27
b. y=4/7x^2; y(3)=4/63
c. y=7/4x^2; y(3)=7/36

@Nnesha

Answer 1

what's the equation for inverse variation ?
remember now it's x^2

Answer 2

The equation is... y=k 1/x?

Answer 3

yes right but now it should be x^2
same like other one
first find k
and then y value :-)