Practice quiz #2 Linear Word Problems and tables

A man is climbing down from 100 feet high descending 30 feet per minute.

• y = 100 - 30x
• y = 100 + 30x
• y = 100x + 30
• y = 100x - 30

Bob has $150 in his savings account and saves $40 per month.  Which equation represents the amount Bob has in his account after x months?

• y = 150 + 40
• y = 40x + 150
• y = 150x + 40

Easy Car Rental charges $8.50 an hour plus a rental fee of $25.50. Which equation represents the total charges for x hours?

• y = 8.5 + 25.5
• y = 25.5 + 8.5x
• y = 8.5 + 25.5x

Amber's savings account had a balance of $350 rolled over from the previous year. She set it up for $50 to be drafted out of her checking account and into her savings account every month. What information in this problem represents the y-intercept?

• 350
• 50
• -50
• -350

Which equation shows the number of bottles left after x days?
A family buys a case of water with 48 bottles and drinks 5 bottles per day.

• y = 48x + 5
• y = -5 + 48x
• y = -5x - 48
• y = 48 - 5x

What is the slope of the line y= -4x + 10?

• 10
• 4
• -4
• -10

Find the slope of the line that passes through the points (2, 4) and (6, 12)

• 1/2
• -1/2
• 2
• -2

Determine the slope and y-intercept from the following equation: y = 3/2x + 3

• slope: 5 y-intercept: 3

• slope: 3/2 y-intercept: 3

• slope: 4 y-intercept: 3/2

• slope: 1/5 y-intercept: 5

The cost for new carpet is $8.55 per square yard, plus an installation fee.  700 square yards of carpet cost $6164.  How much is the installation fee?

• $8.55
• $6155.45
• $179
• $5985

Write the equation.

• f(x) = -5x + 1
• f(x) = x + 5
• f(x) = -2x
• f(x) = -5x + 6