Solve the following quadratic functions by graphing. ...make a graph on your own paper and type in your solutions below.
y = x^2 + 2x – 8

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

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 the distance from (–3, 1) to (–1, 5)? round your answer to the nearest hundredth. (4 points) a. 3.60 b. 4.12 c. 4.47 d. 5.66