Unit 8 Review

Which situation can be represented by the equation y = 32x

• An employee earns a total of y dollars at a rate of $32 per hour, x.

• An employee has completed a total of 32 projects, which includes the number of projects, completed last year, x, and the number of projects completed this year, y.

• An employee worked 32 hours last week, which include the hours worked during the week, y, and the hours worked on the weekend, x

• An employee earns a total of $32 after working x number of hours at a rate of y dollars per hour.

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

Equation 1:  y = x + 8

Equation 2:  y = 8x

•      In equation 1 and 2, the value of y is 8 more than the value of x.

•     In equation 1, the value of y is 8 more than x and in equation 2 the value of y is 8 times the value of x.

• In equation 1 and 2, the value of y is 8 times the value of x.

• In equation 1, the value of x is 8 more than y, and in equation 2, the value of x is 8 times the value of y.

Four points are graphed on the coordinate grid.  Which point is best represented by the ordered pair (3, –6)?

• Point A

• Point B

• Point C

• Point D

The graph shows the relationship between the number of levels a person passes in a video game, x, and the

                number of points earned by each level passed, y.

•   x = 2y

• x = y + 2

•   y = 2x

•     y = x + 2

The graph shows the relationship between x and y in a data set.

Which lists shows the dependent quantities in the graph?

• 2, 4, 6, 10

• 2, 4, 6, 8, 10, 12, 14, 16, 18, 20

• 4, 8, 12, 20

• 2, 4, 4, 8, 6, 12, 10, 20

Which situation can be represented by the equation y = 15x?

• Leah spent x dollars at the store. This was fifteen times the amount of money Ryan spent, y.

• Leah spent y dollars at the store. This was fifteen dollars more than the amount Ryan spent, x.

• Leah spent x dollars the store. This was fifteen dollars less than the amount Ryan spent, y.

• Leah spent y dollars at the store. This was fifteen times the amount of money Ryan spent, x.

The coordinate grid shows the locations of points A, B, C, and D. What is the value of the y-coordinate of point

                 B?

• -8

• -5

• -6

• 3

The table shows the relationship between x and y, where x is the independent quantity.

Which equation represents the relationship between x and y?

A coordinate grid is shown. Which ordered pair describes a point that is located 6 units to the right of the

   origin and 3 units below the x-axis?

A mechanic charges a set fee per hour of labor. Yesenia went to the mechanic for a car repair and was

                     charged a labor fee of $540 for 4 hours of work.

      Which table shows the relationship between the labor fee charged by the mechanic and the number of    

      hours he spends on a repair?

 

• A

• B

• C

• D