Question

Brooklyn's car is stopped at a red light. When the light changes, the car accelerates to 75 miles per hour in 15 seconds.

What is the approximate rate of change in the miles per hour that Brooklyn's car accelerated?
A) 5 miles per hour per second
B) 6 miles per hour per second
C) 15 miles per hour per second
D) 45 miles per hour per second
5)
Determine the exponential regression for the data set. Which exponential equation BEST approximates the data set?

{(1, 4), (2, 12), (3, 32), (4, 60)}
A) y = 1.3(1.5)^x
B) y = 1.3(2.5)^x
C) y = 1.8(2.5)^x
D) y = 2.3(3.5)^x
6)
Joanne is charged a base rate of $40.00 each month for her cell service. She upgrades her phone and chooses to make 18 monthly payments of $25 to pay for her new Samsung. She must also pay 25 cents for each text that she sends. Which function represents Joanne's phone charges each month for the next 18 months?
A) y = .25x + 65
B) y = .25x + 40
C) y = .25x + 72
D) y = 25x + 40
7)
Given the function ƒ(x) = 3x^3 + 7x^2 + 5x, find ƒ(−3).
A) ƒ(−3) = −3
B) ƒ(−3) = −33
C) ƒ(−3) = −129
D) ƒ(−3) = −159

8)
D(b) is a function that models the population of deer based on the number of bobcats in an area. What is an appropriate domain for this function?
A) D = {all integers}
B) D = (all real numbers}
C) D = {rational numbers}
D) D = {all whole numbers}

9)
Consider the table for f(x) and the graph for g(x). Which statement is true when comparing the y-intercepts of the functions?
A) The y-intercept for f(x) is greater than the y-intercept for g(x).
B) The y-intercept for both functions is (0, 0).
C) The y-intercept for g(x) is greater than the y-intercept for f(x)
D) The y-intercept for both functions is (0, 2).

10)
Find the value of the lesser root of x^2 + 12x + 35 = 0.
A) -7
B) -5
C) 3
D) 5

11)
Rewrite y + 3 = 0 using function notation.
A) f(x) = 3
B) f(x) = -3
C) f(x) + 3 = 0
D) f(x) = y + 3

12)
When x increases from a to a + 2, y increases by a difference of 6.

For which functions is this statement true?
A) y = 2(3)^x
B) y = 2(9)^x
C) y = 3x + 2
D) y = 9x + 2

13)
Let g(x) = 2x^2 - 11x. Find g(-1).
A) -13
B) -9
C) 0
D) 13

15)
Consider the function f(x) = x^2 shown, which describes the graph of the function?
A) increasing
B) decreasing
C) increasing then decreasing
D) decreasing then increasing

16)
Position Value of Term
1 -6
2 -12
3 -18
4 -24
5 -30

What expression shows the relationship between the value of any term and n, its position in the sequence?
A) -6n
B) -5n
C) -4n
D) -3n

18) Let g be the function given by g(x) = 3 − x/x + 5.

Find and simplify g(2) − 1/g(−3).
A) −1/21
B) −2/21
C) −4/21
D) −8/21

19)
x f(x)
−2 −2
−1 −3
0 −4
1 −5
2 −6

The table represents f(x). Suppose g(x) = 3(2)x. Which statement is true when comparing the y-intercepts for f(x) and g(x)?
A) The y-intercept for f(x) is greater.
B) The y-intercept for g(x) is greater.
C) The y-intercepts are equal.
D) Both y-intercepts are positive.

20) What is the closed linear form of the sequence 3, 4, 5, 6, 7, ...?
A) an = 2 + n
B) an = 2 - n
C) an = 3 + n
D) an = 3 - n

Answer 1

Brooklyn's car is stopped at a red light. When the light changes, the car accelerates to 75 miles per hour in 15 seconds.

What is the approximate rate of change in the miles per hour that Brooklyn's car accelerated?
A) 5 miles per hour per second
B) 6 miles per hour per second
C) 15 miles per hour per second
D) 45 miles per hour per second 6576y

Answer 2

Answer:

Is 5 if you get it wrong then it would be 7

Step-by-step explanation: