Algebra 1 Test 2

Which set of ordered pairs represents the relation shown in the graph?

• $\left\{(3,-5),(-2,0),(2,0),(-1,1),(3,5)\right\}$

• $\left\{(5,-3),(2,0),(0,-2),(-1,1),(-3,-5)\right\}$

• $\left\{(-5,3),(0,-2),(2,0),(1,-1),(3,5)\right\}$

• $\left\{(-5,3),(-2,0),\ (0,2),\left(1,-1),(3,5)\right)\right\}$

Which table represents the relation shown in the graph?

• x | y

  5 | 3

  -1 | 1

  2 | 0

  0 | -2

  3 | -5

• x | y

  1 | -1

  0 | -2

  2 | 0

  -5 | 3

  3 | 5

• x | y

  -5 | 3

  -2 | 0

  0 | 2

  1 | -1

  3 | 5

• x | y

  3 | 5

  -1 | 1

  0 | -2

  0 | 2

  -5 | 3

What is the DOMAIN of the relation shown in the graph above?

• {-5, -2, 0, 1, 3}

• {1, 3, 0, -2, -5}

• {0, 2, -1, 3, 5}

• {-5, -2, 2,-1, 3}

What is the RANGE of the relation shown in the graph above?

•  $\left\{-1,0,2,3,5\right\}$  

•  $\left\{-5,-2,0,1,3\right\}$  

•  $\left\{-2,-1,2,3,5\right\}$  

•  $\left\{-5,-1,0,2,3\right\}$  

Which mapping represents the relation $\left\{(-2,4),(4,2),(2,4),-4,2)\right\}?$  

• A

• B

• C

• D

Which relation is represented by the mapping diagram shown?

• $\left\{(3,2),(5,2),(7,4)\right\}$

• $\left\{(2,3),(4,7)\right\}$

• $\left\{(5,2),(7,4)\right\}$

• $\left\{(2,3),(2,5),(4,7)\right\}$

Does this mapping represent a function? Why?

• Yes, it is a function (all the x values are different).

• No, it is not a function (the x values repeat).

• Yes, it is a function (the y values are different).

• No, it is not a function (the y values repeat).

Which of the graphs shown is a function?

• F
• G
• H
• J

Tags

CCSS.8.F.A.1

If $f(x)=3x-7$ , find  $f\left(4\right)$ 

•  $0$  

•  $5$  

•  $14$  

•  $19$  

Find the range of  $f(x)=7x-2$ ,  given the domain is  $D=\left\{-1,2,3\right\}$ .

• $\left\{-7,14,21\right\}$

• $\left\{-9,12,19\right\}$

• $\left\{-5,12,21\right\}$

• $\left\{-9,14,19\right\}$