
Functions and Volume: Mid-Unit Assessment (A)
Authored by Keelie Knego
Mathematics
8th Grade
CCSS covered
Used 3+ times

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10 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Select all the functions whose graphs include the point (16, 4).
y = 2x
y = x + 12
y = x - 12
y = (1/4)x
Tags
CCSS.8.F.A.1
CCSS.HSF.IF.A.1
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
This graph shows the temperature in Diego’s house between noon and midnight one day. Select all the true statements.
A. Time is a function of temperature.
B. The lowest temperature occurred between 4:00 and 5:00.
C. The temperature was increasing between 9:00 and 10:00.
D. The temperature was 74 degrees twice during the 12-hour period.
E. There was a four-hour period during which the temperature did not change.
Tags
CCSS.8.EE.B.5
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
This table shows a linear relationship between the amount of water in a tank and time. | time (minutes) | water (gallons) | |---------------|----------------| | 0 | 30 | | 5 | 20 | | 10 | 10 | Which of these statements is true?
The water in the tank is increasing at a rate of 2 gallons per minute.
The water in the tank is increasing at a rate of 10 gallons per minute.
The water in the tank is decreasing at a rate of 2 gallons per minute.
The water in the tank is decreasing at a rate of 10 gallons per minute.
Tags
CCSS.HSF-LE.A.1B
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What was her fastest speed, in miles per hour?
50 mph
60 mph
70 mph
80 mph
Tags
CCSS.HSF.IF.B.4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lin counts 5 bacteria under a microscope. She counts them again each day for 4 days, and finds the number of bacteria doubled each day, from 5 to 10, then from 10 to 20 and so on. Is the population of bacteria a function of the number of days? If so, is it linear?
Yes, it is a linear function.
Yes, it is a non-linear function.
No, it is not a function of the number of days.
It depends on other factors.
Tags
CCSS.8.F.A.3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two plumbing companies charge money for each hour of work, plus a one-time fee. A Plus Plumbing charges according to this table: [time (hours), cost (dollars): 1, 140; 4, 320; 6, 440]. How much does A Plus Plumbing cost for each hour of work, and what is the one-time fee?
$50 per hour, $90 one-time fee
$60 per hour, $80 one-time fee
$70 per hour, $70 one-time fee
$80 per hour, $60 one-time fee
Tags
CCSS.8.EE.C.8C
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Two plumbing companies charge money for each hour of work, plus a one-time fee. Quality Plumbing charges according to this graph. How much does Quality Plumbing charge for each hour of work, and what is the one-time fee?
$50 per hour, $30 one-time fee
$40 per hour, $20 one-time fee
$60 per hour, $40 one-time fee
$70 per hour, $50 one-time fee
Tags
CCSS.HSF.LE.B.5
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