
Algebra - Functions Review
Authored by Kathlynn Ross
Mathematics
9th - 10th Grade
CCSS covered
Used 39+ times

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21 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which most likely describes a situation in which the graph is continuous?
On average 145 students are absent each day
A dentist sees 40 patients a week
The amount of water pouring out of a hose over time.
One tree is planted for every $5 donated
Answer explanation
Since the water continuously pours out of the hose, the domain can be broken down into infinitely small parts. This makes it reasonable for the graph to be continous.
Tags
CCSS.8.EE.B.5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which set of points shows an undefined slope?
None of these
Answer explanation
Since the slope his the rise over the run, if the run (change in x) is 0, the slope will be undefined.
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A geometric function
An arithmetic function
A quadratic function
None of these
Answer explanation
When the input variable is an exponent and the base is a constant, you get a geometric (also called an exponential) function.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marcus deposits $1250 into an account that will earn 6% interest each year. He gets interest at the end of each year, but not inbetween.
This graph would be geometric and discrete
This graph would be linear and discrete
This graph would be geometric and continuous
This graph would be linear and continuous
Answer explanation
Situations that describe growth based on a percent are geometric. Since interest only happens once each year the graph would have distinct, separate points, making it descrete.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Marcus deposits $1250 in an account that will earn 6% interest each year. Which equation is the best explicit equation to use to find the amount of money that Marcus will have in his account at any year in the future?
Answer explanation
On a percent increase problem, you add the percent in the problem to 100 percent to get the common ratio. The ratio must be written as a decimal.
Tags
CCSS.HSF.LE.A.2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Kylie buys a new car with a beginning value of $24,000. The dealer told her to expect the car to depreciate (go down in value) by 8% per year. To the nearest whole dollar, what is her car worth after 2 years?
$22,080
$27,994
$20,160
$20,314
Answer explanation
Since the car is going down in value the common ratio will be based on 100 percent minus 8 percent. Use .92 as your common ratio.
Tags
CCSS.HSF.BF.A.2
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
None of these
Answer explanation
Plug the 4 in for the x.
-4(4)+3 equals -16+3 for a final value of -13.
Tags
CCSS.HSF.IF.A.2
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