A student needed a calculator for statistics class. She collected selling price and bid data from Ebay. com on the same model of calculator she needs to purchase. The equation of the regression line is ,
where x = the number of bids and = the predicted selling price (in dollars). What is the interpretation of the
slope and y intercept?

Given the system of equations presented here: 2x + 4y = 14 4x + y = 20 which of the following actions creates an equivalent system such that, when combined with the other equation, one of the variables is eliminated? multiply the second equation by â’4 to get â’16x â’ 4y = â’80 multiply the second equation by â’1 to get â’4x â’ y = â’20 multiply the first equation by 2 to get 4x + 8y = 28 multiply the first equation by â’1 to get â’2x â’ 4y = â’14

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?