Your friend graphed the inequality -x + 2y

Shade the other half of the plane.

Use a solid line instead of a dashed line.

A square has an area of 100 square centimeters. Select all the true statements.

The formula for the area of the square is $$10^2$$ = A.

The perimeter of the square is 40 centimeters.

The side length of the square is 10 centimeters.

The side length of the square is 25 centimeters.

The perimeter of the square is 100 centimeters.

The vertices of a triangle are L(−3, 0), M(4, 1), and N(1, −4). What are the coordinates of the image after reflecting the triangle in the x-axis?

L′(−3, 0), M′(4, −1), and N′(1, 4)

L′(0, 3), M′(1, −4), and N′(−4, −1)

L′(0, −3), M′(1, 4), and N′(−4, 1)

L′(3, 0), M′(−4, 1), and N′(−1, −4)

The distance y (in miles) that Train A travels in x hours is represented by the equation y = 64x. The distance that Train B travels is represented by a graph of a line through the points (0, 0) and (1, 60). Which of the following statements are true? Select all that apply.

The distance y (in miles) that Train B travels in x hours is represented by the equation y = 60x.

Train A is traveling at a faster rate.

It will take Train A 8 hours to travel 512 miles.

In 5 hours, Train A will have traveled 300 miles.

The distance y (in miles) that Train B travels in x hours is represented by the equation y = 6x.

The equation y = -40x + 200 represents the number of books, y, left to sign for customers in line for x hours. Select all the true statements.

The slope represents the number of books signed each hour.

The x-intercept represents the number of hours it takes until all the books are signed.

The y-intercept represents the number of books to initially sign.

The slope represents the number of hours signing books.

The slope represents the number of books remaining to sign.

A rectangle is 6 units wide and x - 8 units long. It has the same area as a triangle with a height of 7 units and a base of x - 3 units. Select all the true statements.

The area of the rectangle is 42 square units.

The equation 6(x - 8) = 7(x - 3)/2 can be used to find the value of x.

The equation 6(x - 8) = 14(x - 3)/2 can be used to find the value of x.

Your friend was solving the equation in the box shown. -1/3(6x + 12) = -18 (6x + 12) = -18(-1/3) 6x + 12 = 6 6x + 12 - 12 = 6 - 12 6x = -6 6x/6 = -6/6 x = -1 Which of the following should your friend do at the start to correct the error that she made?

B. Distribute -1/3 to get -2x - 4.

Figures A, B, and C are congruent to the shaded triangle. Select all the statements about the triangles that can be true.

Figure B is a reflection of the shaded triangle.

The shaded triangle is a translation of Figure A.

Figure C can be rotated onto the shaded triangle.

Figure A is a reflection of the shaded triangle.

Figure C is a reflection of Figure A.

The graph shows the change in temperature of a cup of water over time. Which of the following statements best describe the graph?

The temperature decreases at a constant rate.

The temperature increases slowly at first and then more quickly.

The temperature decreases slowly at first and then more quickly.

The temperature increases at a constant rate.

The scatter plot shows the enrollment of a daycare after the year 2010. Which statements are true about the data? Select all that apply.

The data show a positive relationship.

There is an outlier at (3, 12).

The equation y = 2.5x + 15 represents the line of best fit.

The equation y = 5x + 15 represents the line of best fit.

Post-Course Test 1 (Grade 8)

Authored by Lensa Abdalla

Mathematics

8th Grade

CCSS covered

Used 9+ times

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61 questions

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Together you and a friend have $65. You each have the same amount of money. Which equation can be used to determine how much money you each have?

2x = 65

x = 65

2x = -65

x = -65

Tags

CCSS.HSA.CED.A.3

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the value of k so that a line with a slope of 1/2 passes through the points (-5, k) and (-3, 5)?

k = 6

k = 4

k = -6

k = -4

Tags

CCSS.8.EE.B.5

MULTIPLE SELECT QUESTION

30 sec • 1 pt

Which expressions are simplified correctly?

Tags

CCSS.8.EE.A.1

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equation of the line that passes through the points (3, -2) and (1, -4)?

y = 2x + 4

y = x - 5

y = x + 4

y = -3x + 4

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

You randomly choose a marble from a bag that contains a red marble, a green marble, a blue marble, and an orange marble. You return it and randomly choose a second marble. What is the probability that neither marble is orange?

56.25%

93.75%

43.75%

6.25%

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which fraction is equivalent to 0.19 (repeating)?

1/11

19/99

10/11

19/10

Tags

CCSS.8.NS.A.1

CCSS.7.NS.A.2D

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

For which value of b will the area of the shaded region be equal to 12 square units?

b = 2

b = 4

b = 6

b = 8

Tags

CCSS.6.G.A.1

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Post-Course Test 1 (Grade 8)

Together you and a friend have $65. You each have the same amount of money. Which equation can be used to determine how much money you each have?

What is the value of k so that a line with a slope of 1/2 passes through the points (-5, k) and (-3, 5)?

Which expressions are simplified correctly?

What is the equation of the line that passes through the points (3, -2) and (1, -4)?

You randomly choose a marble from a bag that contains a red marble, a green marble, a blue marble, and an orange marble. You return it and randomly choose a second marble. What is the probability that neither marble is orange?

Which fraction is equivalent to 0.19 (repeating)?

For which value of b will the area of the shaded region be equal to 12 square units?

Which of the following are measures of the numbered angles? Select all that apply.

The volume of a spherical ball is 288π cubic centimeters. What is the diameter of the ball?

The difference between two positive numbers is 48. The lesser number is 1/3 of the greater number. What are the two positive numbers?

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