Math 2201 Chapter 8 Worksheet With Answers Page 2

3. (OMIT) Sean buys a package of 15 pencils for $4.50 at Walmart. Angela buys a box of 50 pencils

at Costco for $14.00. Which is the better buy?

4. Each of your finger nails grow at about 0.05 cm/week. Each of your toe nails grow at about 0.65

cm/year. Do your toe nails or finger nails grow faster?

Finger Nails

Toe Nails





0.05 52 2.6cm/yr

0.65cm/yr

Your finger nails grow faster.

5. The graph below shows the population (in thousands) in Newfoundland from 1956 to 2006.

a) What does a positive slope indicate in this graph?

An increasing population

b) What does a negative slope indicate in this graph?

A decreasing population

c) What does the slope of a horizontal line indicate in this graph?

A stable population

d) What does the steepness of the slope represent in this graph?

The rate at which the population is increasing or decreasing.

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