Cumulative Review

Sara is shopping and comes across a sale on shirts. For $45, a customer can purchase 2 shirts. Which graph has a slope that best represents the cost of the shirts to the number of shirts purchased?

• Graph A

• Graph B

• Graph C

• Graph D

What are the slope and y-intercept of the graph of the linear function shown on the grid?

• slope = -3/2, y-intercept = 3

• slope = 3/2, y-intercept = -2

• slope = 2/3, y-intercept = -2

• slope = -2/3, y-intercept = -2

Which representation shows y as a function of x?

• Representation F

• Representation H

• Representation G

• Representation J

The width of a rectangle is 4 feet, and the diagonal length of the rectangle is 7 feet. Which measurement is closest to the length of this rectangle in feet?

• 4.3 feet

• 5.7 feet

• 8 feet

• 11 feet

Four triangles are shown. One side of each triangle lies on a ray. The triangles are not drawn to scale. Based on these triangles, which statement about x is true?

• x = 95, because 180 - (75 + 20) = 85 and 180 - 85 = 95

• x = 85, because 75 + 20 = 95 and 180 - 95 = 85

• x = 125, because 180 - 75 = 105 and 105 + 20 = 125

• x = 275, because 75 + 20 = 95 and 95 + 180 = 275

Julissa deposited $5,000 in an account to save for college. The account earns 3% interest compounded annually. Julissa makes no additional deposits or withdrawals. What was the balance in dollars and cents in Julissa’s account at the end of 10 years?

Mathematical Equivalence

ON

Similar right triangles ABC and NMA are shown on the coordinate grid. Which proportion can be used to show that the slope of \(\overline{AC}\) is equal to the slope of \(\overline{NM}\)?

• F

• G

• H

• J

The diagram shows three squares that are joined at their vertices to form a right triangle. Which statement is true?

• The area of the shaded square is equal to 369 – 17.

• The area of the shaded square is equal to 369 + 17.

• The area of the shaded square is equal to 369 – (17)².

• The area of the shaded square is equal to 369 + (17)².

Neal deposits $340 into each of two savings accounts. Account I earns 6% annual simple interest. Account II earns 5% interest compounded annually. Neal does not make any additional deposits or withdrawals. What is the sum of the balances of Account I and Account II at the end of 3 years?

• $61.20

• $401.20

• $454.79

• $794.79

Which function is best represented by this graph?

• y = -3/4 x + 7

• y = 3/4 x + 11/2

• y = -11/3 x - 1/2

• y = -3/4 x + 11/2