Functions Test Review

 $g\left(x\right)=3x+4,\ find\ g\left(-3\right)$  

• 5

• 13

• -5

• -2

 $g\left(x\right)=-7x+4,\ find\ g\left(-2\right)$  

• -10

• 10

• -12

• 18

Choose the graph above that best represents a tomato plant that grows quickly at first, remains a constant height during a dry spell, then grows at a steady pace.

• Graph A

• Graph B

• Graph C

Choose the graph that best represents a person walking to school, stays at school for some time, and then walks back home.

• Graph A

• Graph B

• Graph C

Choose the graph that best represents the temperature of the water in a glass that rose steadily for several hours until it reached room temperature, then remained constant.

• Graph A

• Graph B

• Graph C

The representation above is a...

• mapping diagram

• table

• graph

Select the x-values from the following ordered pairs:

 $\left\{\left(3,4\right),\left(7,1\right),\left(3,4\right)\left(-1,4\right)\right\}$  

• 3

• 4

• 7

• 1

• -1

Select the y-values from the following ordered pairs:

 $\left\{\left(3,4\right),\left(7,1\right),\left(3,4\right)\left(-1,4\right)\right\}$  

• 3

• 4

• 7

• 1

• -1

 $f\left(x\right)=\frac{x\ +\ 7}{3},\ find\ f\left(20\right)$  

True or False: The mapping diagram above is an example of a function.

• True

• False