Regents Prep HW - 2014 MCs-ish

The table shows the average yearly balance in a savings account where interest is compounded annually. No money is deposited or withdrawn after the initial amount is deposited. Which type of function best models the given data?

• linear function with a negative rate of change

• linear function with a positive rate of change

• exponential decay function

• exponential growth function

A company that manufactures sunglasses first pays a start-up cost, and then spends a certain amount of money to manufacture each pair of sunglasses. If the cost of manufacturing s sunglasses is given by the function c(s) = 6.75s + 120, then the 6.75 best represents...

• the start-up cost

• the profit earned from the sale of one pair of sunglasses

• the amount spent to manufacture each pair of sunglasses

• the average number of sunglasses manufactured

Tags

CCSS.HSF.LE.B.5

A ball is thrown into the air from the edge of a 48-foot-high cliff so computations. that it eventually lands on the ground. The graph below shows the height, y, of the ball from the ground after x seconds. For which interval is the ball’s height always decreasing?

• 0 ≤ x ≤ 2.5

• 0 < x < 5.5

• 2.5 < x < 5.5

• x ≥ 2

What is the correlation coefficient of the linear fit of the data shown, to the nearest hundredth?

• 1.00

• 0.93

• -0.93

• -1.00

Tags

CCSS.HSS.ID.C.8

Which expression results in a rational number?

• L + M

• M + N

• N + P

• P + L

The formula for the volume of a cone is V = (1/3)πr²h. The radius, r, of the cone may be expressed as which choice?

• (1)

• (2)

• (3)

• (4)

Tags

CCSS.HSA.CED.A.4

The diagrams represent the first three terms of a sequence. Assuming the pattern continues, which formula determines a_n, the number of shaded squares in the nth term?

• a_n = 4n + 12

• a_n = 4n + 8

• a_n = 4n + 4

• a_n = 4n + 2

Tags

CCSS.HSF.BF.A.2

Given 2x + ax - 7 > -12, the largest integer value of a when x = -1 is __________.

On the set of axes, draw the graph of the equation 2x + 3y = 21.

The graph of y = f(x) is given. Which point could be used to find f(2)?

• A

• B

• C

• D

Tags

CCSS.HSF.IF.A.2