The point (4,-2) is the vertex of the graph of a quadratic function. The points (8,6) and (2,0) also fall on the graph of the function. Complete the graph of this quadratic function by first finding two additional points on the graph. Part A: What is the y-intercept of the graph?

Part B: What are the x-intercepts?

Part C: Find the interval on which the rate of change is always positive.

Part D: What is a sign of the leading coefficient for this quadratic function? How do you know?

Aschool typically sells 500 yearbooks each year for 50 dollars each. the economic calls does a project and discovers that they can sell 100 more yearbooks for every $5 decrease in price. the revenue for yearbook sales is equal to the number of yearbooks sold times the price of the yearbook. let x represent the number of $5 decrease in price. if the expression that represents the revenue is written in the form r(x)=(500+ax)(50-bx). to maximize profit, what price should the school charge for the yearbooks? what is the possible maximum revenue? if the school attains the maximum revenue, how many yearbooks will they sell?

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

What is the probability of rolling a single die greater than 4