If y varies inversely with x, and y = –16 when x = –64, what is the constant of variation?

16

64

100

1,024

1 answer

The constant of variation can be found by the formula k = xy, where x and y are the values given.
In this case, y = -16 and x = -64.
Therefore, k = (-16)(-64) = 1024.

Therefore, the constant of variation is 1,024.