Study Guide 6

In a recipe 3 eggs are used to make 45 cookies. Which table shows the relationship between the number of eggs used and the number of cookies made?

• F

• G

• H

• J

Which statement describes the relationship between x and y in these two equations? y = 2x, y = x + 2.

• In y=2x the value of y is 2 more than the value of x, and in y=x+2 the value of y is twice the value of x.

• In y=2x and in y=x+2, the value of y is 2 more than the value of x.

• In y=2x and in y=x+2, the value of y is twice the value of x.

• In y=2x the value of y is twice the value of x, and in y=x+2 the value of y is 2 more than the value of x.

Which situation can be represented by the equation y = 12x?

• Victoria went to school for x years. This is 12 times y, the number of years her brother went to school.

• Victoria spent x dollars to buy a gift for her brother. She gave the cashier y dollars and received $12 in change.

• Victoria has y dollars. This amount is 12 times x, the amount of money in dollars Victoria's brother has.

• Victoria is y years old. Her age is 12 years greater than x, her brother's age in years.

Which graph best represents the relationship between x and y in the equation y = 3.5x?

• A

• B

• C

• D

At a bookstore the total cost of 6 books is $45.00. Each book costs the same amount. Which table shows the relationship between the number of books bought and the total cost in dollars?

• A

• B

• C

• D

The cost of downloading one song from a website is $0.99. Which equation can be used to find t, the cost in dollars of downloading n songs?

• t = 0.99 + n

• n = 0.99 + t

• t = 0.99n

• n = 0.99t

A firefighter uses equipment that weighs 60 pounds. The firefighter weighs x pounds. Which equation can be used to find t, the total weight of both the firefighter and his equipment in pounds?

• t = 60x

• t = x + 60

• t = 60 - x

• t = x - 60

Which equation represents the relationship between b and c?

• c = 70b

• c = b + 70

• c = 140b

• c = b + 140

Which equation represents the relationship in the table?

• w = d + 1.25

• w = 14.50d + 1.25

• w = 15.75d – 1.25

• w = d – 1.25

Which list shows the dependent quantities from the table?

• A 26, 52, 78, 104, 130

• B 25, 50, 75, 100, 125

• C 1, 2, 3, 4, 5

• D None of these