Functions QUIZ #1

What is the domain of f(x)?

• {-3, -1, 1, 3, 5, 7, 9}

• {-3, -2, -1, 0, 1, 2, 3}

• [-3,3]

• [-3,9]

What is f(3)?

• 9

• 7

• 0

• -3

Evaluate the function  $f\left(x\right)=4x^2-5$  for  $f\left(-3\right)$ .

• -41

• 139

• 31

• -149

Given the function $h\left(t\right)=14-5t$ , for what value of t is  $h\left(t\right)=-1$  ?

• 19

• -1

• 3

• 0

Identify the range of the following function for the domain {2, 3, 10}:

y = 4x - 12

• {4, 12, 20}

• {-20, 0, 28}

• {-4, 0, 28}

• {8, 12, 40}

What is the range of the graph?

• (-2,10)

• (-3,3)

• [-2,10]

• [-3,3]

Which one of the following is not a function?

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• 
• 
• 

Which of the following functions is one-to-one?

• 
• 
• 
• 
• 

What is the domain of the function $f\left(x\right)=\frac{4}{x+3}$  ?

•  $x\ge4$  

•  $x\ge-3$  

• All real #'s, $x\ne-3$  

• All real #'s, $x\ne-4$  

Which of the following represents the domain of the function,  $f\left(x\right)=\sqrt{3x-12}$  ?

•  $x\ge12$  

•  $x\ge4$  

• All real #'s,  $x\ne4$  

•  $\left(-\infty,\infty\right)$