Adv Math: 1-1 Relations and Functions

Relations and Functions

Adv Math: 1-1

Multiple Choice

Is this a function?

• Yes

• No

Multiple Choice

Is this a function?

• Yes

• No

Multiple Choice

Is this a function?

• Yes

• No

Multiple Choice

What is the domain of this relation?

{(1,1), (2,4), (3,9), (4,16), (5,25)}

• D {1, 4, 9, 16, 25}

• D {1, 2, 3, 4, 5}

Multiple Choice

What is the range of this relation?

{(1,1), (2,4), (3,9), (4,16), (5,25)}

• R {1, 4, 9, 16, 25}

• R {1, 2, 3, 4, 5}

Multiple Choice

Is this relation a function?

{(1,1), (2,4), (3,9), (4,16), (5,25)}

• Yes

• No

Multiple Choice

Only one of the choices is a function. Which one is it?

• {(7,5), (-6,0), (2,3)}

• {(7,5), (-6,0),(-6,-2), (2,3)}

• {(7,5), (-6,0), (7,3)}

• {(4,2), (2,4), (4,1), (2,8)}

Fill in the Blank

Evaluate:  $f\left(-1\right)$  if  $f\left(x\right)=2x^3+4x^2-5x$  

Fill in the Blank

Evaluate  $g\left(4\right)$  if  $g\left(x\right)=x^4-3x^2+4$  

Multiple Choice

Determine the domain of  $h\left(x\right)=\frac{4x}{x\left(x^2-16\right)}$  

•  $\left\{x:\ x\ne4\right\}$  

•  $\left\{x:\ x\ne\pm4,\ x\ne0\right\}$  

•  $\left\{x:\ x\ne\pm4\right\}$  

•  $\left\{x:\ x\ne\pm16,\ x\ne0\right\}$  

Multiple Choice

Evaluate  $g\left(n-5\right)$  if  $g\left(x\right)=\frac{x^2-6}{2x}$  

•  $\frac{n^2-5}{2n-20}$  

•  $\frac{n^2-10n+19}{2n-10}$  

•  $\frac{n^2-6}{2n}-5$  

•  $\frac{n^2-10n+19}{2n-5}$