Unit 8 Test Review

Which situation can be represented by the equation y = 22x?

• An employee earns a total of y dollars at a rate of $22 per hour, x.

• An employee has completed a total of 22 projects, which includes the number of projects, completed last year, x, and the number of projects completed this year, y.

• An employee worked 22 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 $22 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 + 6

Equation 2: y = 6x

• In equation 1 and 2, the value of y is 6 more than the value of x.

• In equation 1, the value of y is 6 more than x and in equation 2 the value of y is 6 times the value of x

• In equation 1 and 2, the value of y is 6 times the value of x.

• In equation 1, the value of x is 6 more than y, and in equation 2, the value of x is 6 times the value of y

Four points are graphed on the coordinate grid. Which point is best represented by the ordered pair (-8, 3)?

• 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. What equation matches the graph?

• x = 7y

• x = y + 7

• y = 7x

• y = x +7

The graph shows the relationship between x and y in a data set. Which list shows the dependent quantities in the graph?

• 1, 2, 3, 4

• 1, 2, 3, 4, 5, 6, 7, 8, 9

• 4, 8, 12, 16

• 1, 4, 2, 8, 4, 12, 5, 18

Which situation can be represented by the equation y = 18x?

• Mrs. Barajas spent x dollars at the store. This was eighteen times the amount of money Noah spent, y.

• Mrs. Barajas spent y dollars at the store. This was eighteen dollars more than the amount Noah spent, x.

• Mrs. Barajas spent x dollars at the store. This was eighteen dollars less than the amount Noah spent, y

• Mrs. Barajas spent y dollars at the store. This was eighteen times the amount of money Noah 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 C?

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

Which equation represents the relationship between x and y?

• y = 3/4 x

• y = x – 3/4

• y = x + 1/2

• y = x – 1/2

A coordinate grid is shown. Which ordered pair describes a point that is located 4 units to the left of the origin and 5 units below the x-axis?

• (-4, 5)

• (4, -5)

• (-4, -5)

• (4, 5)

The tables show the relationships between x and y for two different sets of data. Which of the following statements accurately describes the relationships between x and y in the two data sets? Choose THREE

• In Data Set II, y is 5 more than x.

• In Data Set I, y is 5.5 times x.

• Both tables show multiplicative relationships.

• Both data sets show additive relationships.

• In Data Set II, y is 5 times x.