Algebraic Representations

Which statement describes the relationship between x and y in these two equations?

• 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.

The table shows the relationship between d, the amount of money Alice has at the beginning of each day, and w, the amount of money she has after riding the bus to work.

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

The graph shows the number of points, y, a player earns in a balloon game based on the number of balloons the player pops, x.

Which equation best represents the relationship between x and y?

• y = x + 25

• x = y + 25

• x = 25y

• y = 25x

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 = 0.00 + n

• n = 0.99 + t

• t = 0.99n

• n = 0.99t

• A

• B

• C

• D

• F

• G

• H

• J

Which algebraic expression correctly represents the sum of 6 and n?

• n - 6

• 6n

• 6 + n

Write the following expression: Mrs. Schneider's age is 5 years greater than twice a students age.

• 5

• +

• 2

• s

• A

• B

• C

• D

Match the following

• 2 - 10n

• The product of 10

  and a number

  increased by 2

• c + (10/2)

• Half the sum of a

  number and ten

  decreased by two.

• 10x + 2

• Two decreased by

  the product of 10 and a number

• 1/2 ( x + 10) - 2

• Half of a number

  increased by 10

• 1/2p +10

• The quotient of ten

  and two more than a number