1. Match the polynomial identity to the correct answer.
a. Difference of Squares
(a - b)(a2 + ab + b2)
b. Difference of Cubes
a2 + 2ab + b2
c. Square of a Sum
(a + b)(a? - ab + b2)
d. Sum of Cubes
(a - b)(a + b)

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

Barney & noblet customers can choose to purchase a membership for $25 per year members receive 10% off all store purchases 1. how much would a member pay per year if he bought $50 worth of items each year? 2. write a slope-intercept equation that expresses how much a member pays per year using x to represent his purchases per year 3. how much would a member have to spend per year to pay off his membership fee?

Which of the functions graphed below has a removable discontinuity?