Q1. Sadie purchased a new laptop six months ago for $2,100. Based on an article she found on a consumer product information website, she estimates that the value of her computer five months from now will be $1,682. Assuming linear depreciation, find the equation that relates the value, V, of the laptop to the number of months, t, since Sadie purchased the laptop. V = ?

Q2. For the quadratic function y = 4x² + 40x + 95, what are the coordinates of the vertex?

( x, y ) = ( _______ , ______ )

Q3. Your college newspaper, The Collegiate Investigator, has fixed production costs of $74 per edition and marginal printing and distribution costs of $0.35 per copy. The Collegiate Investigator sells for $0.75 per copy.

(a) Write down the associated linear cost, revenue, and profit functions (in dollars) where x represents the number of copies of the newspaper made and sold.

C(x) = ?

R(x) = ?

P(x) = ?

(b) What profit (or loss) results from the sale of 500 copies of The Collegiate Investigator? $____?___

(c) How many copies should be sold in order to break even? ___?____ copies