What are the coordinates of the
vertex of the graph of
y=x2 + 2x + 8?

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

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.

What is mean median mode and range?