Independent Practice Now practice solving some problems.

People
2
3
4
5
6

Cost
(dollars)

7.90
11.85
15.80
19.75
23.70

The rate of change is constant in the table. Find the rate of change. Explain what the rate of change means for the situation.

A.
–3.95; the cost per person is –$3.95.

B.
–0.25; the cost per person is –$.25.

C.
3.95; the cost per person is $3.95.

D.
0.25; the cost per person is $.25.

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?

Which statement explains how you could use coordinate geometry to prove the opposite sides of a quadrilateral are congruent? a. use the slope formula to prove the slopes of the opposite sides are the same. b. use the slope formula to prove the slopes of the opposite sides are opposite reciprocals. c. use the distance formula to prove the lengths of the opposite sides are the same. d. use the distance formula to prove the midpoints of the opposite sides are the same.

Which of the following is the sum of 3 1/6 + 6 3/8?