CCSS.Math.Content.8.F.B.4

CCSS.Math.Content.8.F.B.4

20 Qs

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CCSS.Math.Content.8.F.B.4

CCSS.Math.Content.8.F.B.4

Assessment

Quiz

Mathematics

Hard

CCSS
Math.Content.8.F.B.4, Math.Content.8.EE.B.5, Math.Content.8.EE.B.6

+1

Standards-aligned

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

An antibiotic is introduced into a colony of 12,000 bacteria during a laboratory experiment. The colony is decreasing by 14.9% per minute. Which function can be used to model the number of bacteria in the colony after x minutes?

f(x) = 12000(1 + 14.9)x
f(x) = 12000(1 - 14.9)x
f(x) = 12000(1 + 0.149)x
f(x) = 12000(1 - 0.149)x

Tags

CCSS.Math.Content.8.F.B.4

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Media Image

Find the slope from the table.

3
-3
20
Not a constant slope/Non-Linear

Tags

CCSS.Math.Content.8.F.B.4

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Find the slope of the line that passes through the points (2, 4) and (6, 12)

1/2
-1/2
2
-2

Tags

CCSS.Math.Content.8.F.B.4

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

What is the algebraic equation for this table?

y = 480x
x = y/480
x + 480 = y
480 - x = y

Tags

CCSS.Math.Content.8.F.B.4

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

There were 417 cell phones sold at an electronics store in January. Since then, cell phone sales at this store have increased at a rate of 3.75% per month. At this rate of growth, which function can be used to determine the monthly cell phone sales x months after January?

f(x) = 417(3.75)x
f(x) = 417(0.0375)x
f(x) = 417(1.0375)x
f(x) = 417(1.375)x

Tags

CCSS.Math.Content.8.F.B.4

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Media Image

Use the line of best fit to approximate rate of change relative to the scatter plot above.

7/5

5/7

-7/5

-5/7

Tags

CCSS.Math.Content.8.EE.B.5

CCSS.Math.Content.8.F.B.4

7.

MULTIPLE CHOICE QUESTION

3 mins • 1 pt

Media Image

If Gold's Gym is looking to buy 30 TVs, how much will each one cost?

400
750
1250
0

Tags

CCSS.Math.Content.8.F.B.4

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