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Unit 3 Exam Review

Authored by David Cadena

Mathematics

12th Grade

CCSS covered

Used 5+ times

Unit 3 Exam Review
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15 questions

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1.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Determine the domain of g(x)=log⁡3(4x−2)g\left(x\right)=\log_3\left(4x-2\right) ?

( 24\frac{2}{4} ,∞)

(-∞, 24\frac{2}{4} )

(-∞,∞)

( 42\frac{4}{2} ,∞)

2.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Use properties of the logarithms to simplify the expression below into a single logarithm. Assume that all variables represent positive real numbers. 5log⁡3X−log⁡3Y+15log⁡3Z5\log_3X-\log_3Y+\frac{1}{5}\log_3Z

log⁡3X55Y\log_3\frac{\sqrt[5]{X^5}}{Y}

log⁡3X5Z5log⁡3Y\frac{\log_3X^5\sqrt[5]{Z}}{\log_3Y}

log⁡35XZ5Y\frac{\log_35X\sqrt[5]{Z}}{Y}

log⁡3X5Z5Y\log_3\frac{X^5\sqrt[5]{Z}}{Y}

3.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Simplify: log⁡216+log⁡28\log_216+\log_28

- 16

7

-2

8

4.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Consider a function g(x) such that lim⁡x→−∞ g(x)=∞\lim_{x\rightarrow-\infty}\ g\left(x\right)=\infty and lim⁡x→∞ g(x)=0\lim_{x\rightarrow\infty\ }g\left(x\right)=0 . Which of the following functions could be g(x)?

2(14)X2\left(\frac{1}{4}\right)^X

(13)−X\left(\frac{1}{3}\right)^{-X}

log⁡3(X)−2\log_3\left(X\right)-2

5ex−185e^x-18

Tags

CCSS.HSF-IF.C.7E

5.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Determine the following statement that best describes the transformation of the graph of the parent function f(x)=log⁡ xf\left(x\right)=\log\ x into the graph of g(x)=log⁡(12x−4)+3g\left(x\right)=\log_{ }\left(\frac{1}{2}x-4\right)+3 ?

Horizontal stretch of 2, translate 8 units to the right, translate 3 units up.

Horizontal compression of 8, translate 4 units to the left, 3 units up.

Horizontal compression of 8, translate 12 units to the left, translate 3 units up.

Horizontal stretch of 2, translate 12 units to the left, translate 3 units up.

6.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

How many solutions are there to the following logarithmic equation?

log⁡3(x+1)+log⁡3(x−2)=log⁡39\log_3\left(x+1\right)+\log_3\left(x-2\right)=\log_39

No solution

One Solution

Two solution

Three solution

7.

MULTIPLE CHOICE QUESTION

5 mins • 1 pt

Determine the following that best describes the graph of f(x)=e−x+4f\left(x\right)=e^{-x}+4 ?

x-intercept at the origin, lim⁡x→∞f(x)=4\lim_{x\rightarrow\infty}f\left(x\right)=4 , f(x) is even

y-intercept at (0,5), lim⁡x→∞f(x)=4\lim_{x\rightarrow\infty}f\left(x\right)=4 , f(x) is neither even nor odd

y-intercept at (0,5), lim⁡x→∞f(x)=∞\lim_{x\rightarrow\infty}f\left(x\right)=\infty , f(x) is neither even nor odd

y-intercept at (0,5), lim⁡x→∞f(x)=−∞\lim_{x\rightarrow\infty}f\left(x\right)=-\infty , fx is neither even nor odd

Tags

CCSS.HSF-IF.C.7E

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