How can you use technology and the structure of a polynomial expression to make connections between a polynomial and its graph?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

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.

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28