In the figure, polygon abcd is dilated by a factor of 2 to produce a′b′c′d′ with the origin as the center of dilation.

point a′ is at , and point d′ is at .

On a string instrument, the length of a string varies inversely as the frequency of its vibrations. an 11-inch string has a frequency of 400 cylces per second. find the frequency of a 10-icnch string.

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

When is g(x) = 0 for the function g(x) = 5.23x + 4?