Unit 8 - Test Review

Which scenario is accurately described by the formula d = 60t?

• A car travels a distance of d miles at a speed of 60 miles per hour for t hours.

• A car has been driven for 60 days, including t days last month and d days this month.

• A car uses 60 gallons of fuel to travel for d hours, covering t miles in total.

• A car is rented for $60, covering a distance of d miles in t hours at a variable rate.

Answer explanation

The formula d = 60t represents the distance traveled at a speed of 60 miles per hour for t hours, which accurately describes the scenario of a car traveling a distance of d miles at a speed of 60 miles per hour for t hours.

Tags

CCSS.HSF-LE.A.1B

How does the relationship between x and y compare in the following equations? Equation 1: y = 2x + 6 Equation 2: y = 6x

• In both equations, y is increased by 6 compared to x.

• In equation 1, y is 6 more than 2 times x, and in equation 2, y is 6 times x.

• For both equations, y is 6 times x.

• In equation 1, x is 6 more than y, and in equation 2, x is 6 times y.

Answer explanation

In equation 1, y is 6 more than 2 times x, and in equation 2, y is 6 times x.

Tags

CCSS.8.F.A.2

CCSS.HSF.IF.C.9

On a coordinate plane, which of the following points is accurately represented by the coordinates (6, 7)?

• Point A

• Point B

• Point C

• Point D

Answer explanation

The point (6, 7) accurately represents Point C on the coordinate plane.

Tags

CCSS.6.NS.C.6C

The chart illustrates the correlation between the number of puzzles solved, x, and the total score achieved for each puzzle solved, y. Which formula accurately depicts the correlation between x and y?

• y = 3x

• x = y + 3

• x = 3y

• y = x + 3

Answer explanation

The correct formula is y = 3x, as it accurately depicts the correlation between the number of puzzles solved and the total score achieved for each puzzle solved.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

The diagram shows the relationship between variable X and variable Y in a study. What are the Independent quantities.

• 1, 2, 3, 4, 5, 6, 7

• 1, 2, 3, 4, 5

• 10, 20, 30, 40, 50

• 5, 10, 15, 20, 25

Answer explanation

The independent quantities in the diagram are 1, 2, 3, 4, and 5, so the correct answer is 1, 2, 3, 4, 5.

Tags

CCSS.6.EE.C.9

Which scenario is accurately described by the equation z = 20w?

• Mark bought w items for $20 each, spending a total of z dollars.

• Mark spent z dollars on w items, with each costing $20 more than the other.

• Mark spent w dollars in total. This was twenty times less than the amount Zoe spent, z.

• Zoe spent z dollars in total. This was twenty times the amount Mark spent, w.

Answer explanation

The equation z = 20w accurately describes Mark buying w items for $20 each, spending a total of z dollars.

Tags

CCSS.6.EE.C.9

The coordinate grid shows the locations of points A, B, C, and D. What is the value of the y-coordinate of point B? Enter your answer in the box.

Answer explanation

The coordinates for point b are (-5,-4) so the y coordinate is -4

Tags

CCSS.6.NS.C.6B

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 = 2x

• y = x/2

• y = x + 1/2

• y = x - 1/2

Answer explanation

The correct equation is y = x - 1/2 because the table shows that y is always 1/2 less than x.

Tags

CCSS.6.EE.C.9

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 above the x-axis?

• (-4, 5)

• (4, -5)

• (4, 5)

• (-4, -5)

Answer explanation

The correct ordered pair is (-4, 5) because it represents a point that is 4 units to the left of the origin (negative x-coordinate) and 5 units above the x-axis (positive y-coordinate).

Tags

CCSS.6.NS.C.6B

A plumber charges a fixed rate for each hour of work. Alex hired a plumber for a job that took 3 hours and was billed $225 for labor. Which table represents the relationship between the labor charge of the plumber and the number of hours worked?

• 
• 
• 
• 

Answer explanation

Table 2 is the correct choice as it shows the relationship between the number of hours worked and the corresponding labor charge, which matches the given scenario of 3 hours and $225 labor charge.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1