Precalculus - Practice Test and Quiz Multiple Choice

Question 1

 

Find the value for the function. Find f(2x) when f(x) = .

		2

4 points  

Question 2

 

Find the value for the function. Find f(x + 1) when f(x) = .

4 points  

Question 3

 

Find the value for the function. Find f(x + h) when f(x) = 3x2 - 4x - 3.

		3x2 + 3xh + 3h2 - 4x - 4h - 3
		3x2 + 3h2 - 4x - 4h - 3
		3x2 + 3h2 + 2x + 2h - 3
		3x2 + 6xh + 3h2 - 4x - 4h - 3

4 points  

Question 4

 

Determine whether the relation is a function. {(-9, 2), (-9, 5), (2, 7), (4, -1), (9, 4)}

		Function
		Not a function

4 points  

Question 5

 

Find the domain of the function. f(x) = 

		{x|x ≤ }
		{x|x ≠ 23}
		{x|x ≤ 23}
		{x|x ≠ }

4 points  

Question 6

 

Determine whether the relation is a function. {(-5, 4), (-2, 9), (4, 8), (5, 2)}

		Function
		Not a function

4 points  

Question 7

 

Give the domain and range of the relation. {(-2, 6), (-1, 3), (0, 2), (1, 3), (3, 11)}

		domain: {-2, -1, 0, 1, 3}; range: {6, 3, 2, 11}
		domain: {6, 3, 2, 11}; range: {-2, -1, 1, 3}
		domain: {-2, -1, 1, 3}; range: {6, 3, 2, 11}
		domain: {6, 3, 2, 11}; range: {-2, -1, 0, 1, 3}

4 points  

Question 8

 

Give the domain and range of the relation. {(6, -5), (3, 2), (4, 6), (-1, 3), (-4, 9)}

		domain = {4, -1, 3, 6, -4}; range = {6, 3, 2, -5, 9}
		domain = {6, 3, 2, -5, 9}; range = {4, -1, 3, 6, -4}
		domain = {2, 6, -5, -4, 9}; range = {4, 6, -1, 3, 3}
		domain = {4, 6, -1, 3, 3}; range = {2, 6, -5, -4, 9}

4 points  

Question 9

 

Find the domain of the function.

		{x|x > 6}
		{x|x ≥ 6}
		{x|x ≠ 6}
		all real numbers

4 points  

Question 10

 

Give the domain and range of the relation. {(19, -2), (3, -1), (3, 0), (4, 1), (12, 3)}

		domain: {-2, -1, 0, 1, 3}; range: {19, 4, 3, 12}
		domain: {19, 4, 3, 12}; range: {-2, -1, 1, 3}
		domain: {-2, -1, 1, 3}; range: {19, 4, 3, 12}
		domain: {19, 4, 3, 12}; range: {-2, -1, 0, 1, 3}

4 points  

Question 11

 

Give the domain and range of the relation. {(5, -6), (5, 5), (-7, 7), (3, -5), (-5, -8)}

		domain = {-5, 7, -8, 5, -6}; range = {3, 3, -7, -5, 5}
		domain = {3, 14, -7, -5, 5}; range = {-5, 7, -8, 5, -6}
		domain = {3, -7, -5, 5}; range = {-5, 7, -8, 5, -6}
		domain = {3, -4, -7, -5, 5}; range = {-5, 7, -8, 5, -6}

4 points  

Question 12

 

Determine whether the relation is a function. {(-4, -1), (-3, 7), (2, -8), (2, -9)}

		Function
		Not a function

4 points  

Question 13

 

Find the value for the function. Find f(x - 1) when f(x) = 5x2 + 5x - 6.

		5x2 - 25x + 4
		5x2 - 5x + 4
		-5x2 + 5x - 6
		5x2 - 5x - 6

4 points  

Question 14

 

Find the value for the function. Find -f(x) when f(x) = 2x2 + 5x + 2.

		2x2 - 5x + 2
		2x2 - 5x - 2
		-2x2 - 5x + 2
		-2x2 - 5x - 2

4 points  

Question 15

 

Find the value for the function. Find f(-x) when f(x) = 2x2 - 2x - 4.

		2x2 + 2x - 4
		-2x2 + 2x + 4
		2x2 + 2x + 4
		-2x2 + 2x - 4

4 points  

Question 16

 

Determine whether the relation is a function. {(-7, -1), (-3, -6), (-2, -7), (2, -2)}

		Not a function
		Function

4 points  

Question 17

 

Solve the problem. If a rock falls from a height of 60 meters on Earth, the height H (in meters) after x seconds is approximately   H(x) = 60 - 4.9x2. When does the rock strike the ground? Round to the nearest hundredth, if necessary.

		2.5 sec
		12.24 sec
		3.5 sec
		1.58 sec

4 points  

Question 18

 

Determine whether the relation is a function. {(-6, 6), (-1, 2), (2, -3), (5, 5)}

		Function
		Not a function

4 points  

Question 19

 

Find the value for the function. Find f(x + h) when f(x) = .

4 points  

Question 20

 

Find the domain of the function. h(x) = 

		{x|x ≠ -8, 0, 8}
		{x|x ≠ 2}
		{x|x ≠ 0}
		all real numbers

4 points  

Question 21

 

Determine whether the relation is a function. {(-3, -8), (3, 6), (5, -5), (7, -6), (10, 6)}

		Function
		Not a function

4 points  

Question 22

 

Find the domain of the function. g(x) = 

		{x|x > 49}
		{x|x ≠ 0}
		all real numbers
		{x|x ≠ -7, 7}

4 points  

Question 23

 

Find the value for the function. Find f(-x) when f(x) = .

4 points  

Question 24

 

Find the value for the function. Find -f(x) when f(x) = |x| + 9.

		-|x| + 9
		-|x| - 9
		|-x| + 9
		|-x| - 9

4 points  

Question 25

 

Solve the problem. The function F described by F(C) = C + 32 gives the Fahrenheit temperature corresponding to the Celsius temperature C. Find the Fahrenheit temperature equivalent to -20°C.

		-4°F
		-40°F
		-76°F
		-112°F