Writing Exponential Functions

Writing Exponential Functions

9th Grade

15 Qs

quiz-placeholder

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Writing Exponential Functions

Writing Exponential Functions

Assessment

Quiz

Mathematics

9th Grade

Medium

CCSS
HSF.LE.A.2, HSF-IF.C.8B, HSF.LE.B.5

+4

Standards-aligned

Created by

Rachel Schuster

Used 106+ times

FREE Resource

15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

A tennis tournament begins with 128 players. At the end of round one, there will be 64 players. There are 32 players at the end of round 2 and 16 players remaining after round 3. Write the equation that best models this situation.

y = -64x + 128

y = 0.5x + 128

y = 128(0.5)x

y = 128(2)x

Tags

CCSS.HSF.LE.A.2

2.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Write an exponential function to model the situation. The cost of tuition at a college is $12,000 and is increasing at a rate of 6% per year.

C(t) = 12000(.94)t

C(t) = 12000(1.94)t

C(t) = 12000(.06)t

C(t) = 12000(1.06)t

Tags

CCSS.HSF.LE.A.2

3.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The amount of cola in a soda machine decreases by a rate of 5% each hour. The amount of cola in the machine was originally 75 gallons.

Which function models the amount of cola in gallons after h hours?

f(h) = 75(-5)h

f(h) = -5(75)h

f(h) = .95(75)h

f(h) = 75(.95)h

Tags

CCSS.HSF.LE.A.2

4.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The function y = 24,220 (0.85)x represents Mr. Bittle's investment in the stock exchange where x is measured in months.

Which statement is NOT true.

Mr. Bittle loses 85% of his investment monthly

Mr. Bittle initially invested $24,220

Each month Mr. Bittle loses 15% of his investment

Tags

CCSS.HSF-IF.C.8B

5.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Write an exponential function to model the situation. You invest $1500. Your investment escalates at a rate of 3.5%.

B(t) = 1500(0.965)t

B(t) = 1500(1.035)t

B(t) = 1500(.035)t

B(t) = 1500(1.965)t

Tags

CCSS.HSF.LE.A.2

6.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Write an exponential function to model the situation. The value of a car is $18000 and is depreciating at a rate of 12% per year.

V(t) = .88(18000)t

V(t) = .12(18000)t

V(t) = 18000(.88)t

V(t) = 18000(.12)t

Tags

CCSS.HSF.LE.A.2

7.

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

What is the a-value (or y-intercept) for the function: f(x) = 800(0.85)x?

800

0.85

0.15

x

Tags

CCSS.HSF-IF.C.7E

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