Assessment #3 Study Guide

You spend $40 on 5 pounds of concrete. What is the unit rate in dollars per pound?

• $8 per pound

• $35 per pound

• $5 per pound

• $0.125 per pound

A unit rate is a rate in which the unit in the denominator is:

• 0

• 3

• 1

• 2

REVIEW QUESTION
Is this table proportional or non-proportional?

• Proportional
• Non-Proportional

What best describes the data on this graph?

• This graph is linear and not proportional.

• This graph is proportional.

• This graph is non-linear.

What makes a graph proportional?

• Straight Line
• The line goes through (0,0)
• Curvy line
• Straight line and passes through (0,0)

Which equation matches the graph?

• y = 7x
• y = 42x
• y = 6x
• y = 2x

What is the equation y=kx for the table?

• y=1/3x
• y=3x
• y=5x
• y=1/5x

The constant of proportionality is 9/1. Interpret what that means in the context of this story.

• $9 per hour

• $9 for 3 hours

• 9 hours per $1

What is the constant of proportionality (in miles per hour) based on the table?

• 45
• 90
• 135
• 2

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

• $1.00 per pound
• $3.60 per pound
• $1.20 per pound
• $1.10 per pound