Unit 8 Test Corrections
Authored by Logan Parrish
Mathematics
9th Grade
CCSS covered
Used 2+ times
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13 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The y-intercept of the function is (0,35).
The x-intercept of the function is (1.4,0).
The graph of the function is decreasing for all values of x.
The asymptote of the function is y = 0.4.
Tags
CCSS.HSF-IF.C.7E
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A sample of a substance with an initial mass of 963 grams is decaying at a rate of 27% per hour.
Create a function that can be used to find y, the mass of the substance in grams remaining after x hours.
Enter your answer in the space provided.
Tags
CCSS.HSF.LE.A.2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A shipping company started with 40 employees. The number of employees at the shipping company increases at a rate of 7.5% each year.
Which function can be used to model the number of employees, f(x), at the shipping company after x years?
Tags
CCSS.HSF.LE.A.2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The graph of a quadratic function is shown on grid. Which function is best represented by this graph?
Tags
CCSS.HSF-IF.C.7A
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
New houses are being built in a neighborhood. The table shows the exponential change in the number of houses in the neighborhood over the last 6 years. Which exponential function best models the data?
Tags
CCSS.HSF.LE.A.2
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
A store manager adjusts the price of an item each week that the item goes unsold. The price of the unsold item, in dollars, after x weeks can be modeled by the exponential function f(x) = 320(0.90)x. Complete this sentence by choosing one of the options in parenthesis. Put a comma to separate the different answers. The initial price of the item before the store manager made any adjustments was (288, 320, or 352). The price of the item (increases or decreases) at a rate of (10%, 90% or 110%).
(a)
Tags
CCSS.HSF.LE.B.5
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tags
CCSS.HSF-IF.C.7E
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