(05.05)What is the rate of change for the linear relationship modeled in the table? x y
−1 10
1 9
3 8
5 7
negative one over two
0
one over two
2

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.