Unit Test

Question 1

Logan saves the same amount of money each month for college. His current total savings is 300m2 + 120m + 180 dollars.  Which factorization could represent the number of months and amount of a monthly deposit in dollars?

Revolt · Accepted Answer

6: 60(5m2 +2m +3)

Question 2

The graph represents the cost of catering a dinner as a function of the number of guests.

Revolt · Accepted Answer

$: $600

Question 3

If g(x) = 2 − 1, what is g(−2.3)?

Revolt · Accepted Answer

-: -7

Question 4

A biologist begins working with a sample containing 20,000 bacteria. The population size doubles every 10 days according to the equation , where t represents the number of days. After seven days the biologist begins working with a second sample of 20,000 bacteria. The equation used to represent the population of sample 2 after t days is . Which of the following is an equivalent form of the equation for the population of sample 2?

Revolt · Accepted Answer

D:

Question 5

The graph of f(x) = |x| is transformed to g(x) = |x + 1| – 7. On which interval is the function decreasing?

Revolt · Accepted Answer

(: (–∞, –1)

Question 6

The step function g(x) is defined as shown.g(x) = What is the range of g(x)?

Revolt · Accepted Answer

{: {–3, 2, 5}

Question 7

three

Revolt · Accepted Answer

A: At 2 hours, the traveler is 725 miles from home.; A: At 3 hours, the distance is constant, at 875 miles.; T: The total distance from home after 6 hours is 1,062.5 miles.

Question 8

Arpitha factors out the greatest common factor, 9n, from the terms of the polynomial shown.162m3n4 + 45n= 9n(_______ + 5)

Revolt · Accepted Answer

1: 18m3n3

Question 9

Which statement is true about the function f(x) = ?

Revolt · Accepted Answer

I: It has the same domain as the function f(x) = .

Question 10

The function f(x)= – is shown on the graph.

Revolt · Accepted Answer

T: The range and domain of the graph are the same.

Unit Test Answers

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