Evaluating Functions

This lecture series focuses on working with functions that are represented by equations and graphs. Watch the videos and complete the interactive exercises.

Recognize functions from tables - Questions

1. The table compares the number of songs and the number of videos Ruby's friends keep on their mobile phones.

Can the number of videos Ruby's friends keep on their phone be represented as a function of the number of songs?

Songs	Videos
$200$	$10$
$125$	$54$
$310$	$112$
$172$	$37$
$215$	$43$
$260$	$58$
$125$	$66$
$322$	$87$

Choose 1 answer:

A. Yes

B. No

2. The table compares the shoes worn by customers in an ice cream shop and the ice cream flavor that they picked.

Can ice cream flavor be represented as a function of the type of shoe?

Shoe type	Ice cream flavor
Boots	Strawberry
Loafers	Vanilla
Sandals	Chocolate
High-heels	Banana
Flip-flops	Pineapple
Moccasins	Chocolate
Sandals	Banana
Loafers	Vanilla

Choose 1 answer:

A. Yes

B. No

3. Erica chops wood in the forest.

The table compares the number of cans of insect repellent Erica uses and the number of mosquito bites she gets each day.

Can the number of mosquito bites be represented as a function of the amount of repellent used?

Cans of repellent	Mosquito Bites
$0$	$11$
$1$	$8$
$5$	$2$
$4$	$5$
$2$	$9$
$4$	$9$
$3$	$6$
$2$	$9$

Choose 1 answer:

A. Yes

B. No

4. The table compares the sizes (in grams) of rice packs and their cost (in dollars) for several different convenient stores.

Can the size of a pack be represented as a function of its price?

Price (dollars)	Size (grams)
$2.30$	$1000$
$1.90$	$850$
$2.00$	$900$
$2.60$	$1200$
$1.90$	$850$
$2.50$	$1100$
$1.70$	$850$
$1.90$	$950$

Choose 1 answer:

A. Yes

B. No