Christy created the scatter plot shown below. Christy finds that the line of best fit for the data has the equation y = 0.51x + 1.48. Which statement best explains how removing the point (15, 7) would affect the slope of the line of best fit?

The slope of the line of best fit would increase because the point lies below the original line of best fit.

The slope of the line of best fit would decrease because the point lies below the original line of best fit.

The slope of the line of best fit would decrease because the point lies above the original line of best fit.

The slope of the line of best fit would increase because the point lies above the original line of best fit.

Given two points from Line A and Line B. Which line has the larger slope? Line A: (-2,3) & (6,-1) Line B: (-2,-5) & (1,7)

Line B has the larger slope of 4.

Line A has the larger slope of -½.

There is not enough information.

Compare the rates of change of the following items.

The rate of change of item I is equal to the rate of change of item II

The rate of change of item I is the reciprocal of the rate of change of item II

The rate of change of item I is less than the rate of change of item II

The rate of change of item I is greater than the rate of change of item II

Microorganism A has a width of 8 × 10 -9 meter and microorganism B has a width of 2 × 10 -5 meter. Which of the following statements is true?

Microorganism B is 2,500 times wider than microorganism A.

Microorganism A is 2,500 times wider than microorganism B.

Microorganism A is 4,000 times wider than microorganism B.

Microorganism B is 4,000 times wider than microorganism A.

Which of the following sets of coordinates represents a rotation of trapezoid PRST?

P' (4, -2), R' (6, -4), S' (6, -6), T' (4, -8)

P' (1, 2), R' (2, 3), S' (3, 3), T' (4, 2)

P' (2, -4), R' (4, -6), S' (6, -6), T' (8, -4)

P' (3, -4), R' (5, -2), S' (7, -2), T' (9, -4)

Christina and Stacie each determined the cost of printing posters for their campaign. Based on the information below, which of the following is true?

Christina's price per poster is cheaper than Stacie's price per poster.

There is not enough information to determine the price per poster.

Christina's price per poster and Stacie's price per poster are the same.

Stacie's price per poster is cheaper than Christina's price per poster.

A bag contains 2 steel balls and 5 brass balls. The total weight is 13 pounds. If 2 steel balls are added and 2 brass balls are removed, the weight decreases to 12 pounds. How much does each kind of ball weigh?

steel: 1.5 pounds, brass: 2 pounds

steel: 4 pounds, brass: 1 pound

steel: 0.75 pounds, brass: 3 pounds

steel: 3 pounds, brass: 4 pounds

The lines 7x + 4y = 35 and 7x + 4y = 35 intersect at ____________________

There are no intersection points.

Which statement matches the graph?

Taylor can write 25 words per minute

Taylor can write 6 words per minute

Taylor can write 50 words per minute

Taylor can write 150 words per minute

8th grade PSSA Review Practice

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MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Tags

CCSS.8.EE.A.1

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Tags

CCSS.8.NS.A.2

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

2(x+6)=3(x+2)+4

x=2

x=2/5

x=-2

2x+2=3x

Tags

CCSS.8.EE.C.7B

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

How many times larger is 5 x 10⁷than 5 x 10²?

1 x 10⁶

1 x 10⁴

1 x 10⁵

1 x 10⁹

Tags

CCSS.8.EE.A.4

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Andrea walks 5 miles from the library to her home. She starts walking at an average rate of 2 miles per hour. After 1 hour, she stops walking for 0.25 hour. When she begins walking again, Andrea walks at an average rate of 3 miles per hour until she arrives home. Which graph represents Andrea’s distance ( y), in miles, from her home as a function of the amount of time (x), in hours, since she left the library?

Tags

CCSS.HSF.IF.B.4

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

Blake interviewed 24 students to see whether they collected sports cards and whether they participated in sports. The table below shows his data.
How many of the students Blake interviewed participate in sports?

Tags

CCSS.8.SP.A.4

MULTIPLE CHOICE QUESTION

15 mins • 1 pt

The scatter plot below shows the temperatures (y), in degrees Fahrenheit (°F), that were recorded at different altitudes (x), in thousands of feet.
Which equation could represent the line of best fit for the temperatures, in degrees Fahrenheit, based on the altitudes, in thousands of feet?

y= -9/4x + 47

y = -7/2x + 59

y = -5x + 69

y = -5x + 80

Tags

CCSS.HSF.LE.B.5

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8th grade PSSA Review Practice

2(x+6)=3(x+2)+4

How many times larger is 5 x 107 than 5 x 102?

Blake interviewed 24 students to see whether they collected sports cards and whether they participated in sports. The table below shows his data. How many of the students Blake interviewed participate in sports?

The scatter plot below shows the temperatures (y), in degrees Fahrenheit (°F), that were recorded at different altitudes (x), in thousands of feet. Which equation could represent the line of best fit for the temperatures, in degrees Fahrenheit, based on the altitudes, in thousands of feet?

Christy created the scatter plot shown below.Christy finds that the line of best fit for the data has the equation y = 0.51x + 1.48. Which statement best explains how removing the point (15, 7) would affect the slope of the line of best fit?

Given two points from Line A and Line B. Which line has the larger slope?Line A: (-2,3) & (6,-1)Line B: (-2,-5) & (1,7)

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How many times larger is 5 x 10⁷than 5 x 10²?

Blake interviewed 24 students to see whether they collected sports cards and whether they participated in sports. The table below shows his data.
How many of the students Blake interviewed participate in sports?

The scatter plot below shows the temperatures (y), in degrees Fahrenheit (°F), that were recorded at different altitudes (x), in thousands of feet.
Which equation could represent the line of best fit for the temperatures, in degrees Fahrenheit, based on the altitudes, in thousands of feet?

Christy created the scatter plot shown below.
Christy finds that the line of best fit for the data has the equation y = 0.51x + 1.48. Which statement best explains how removing the point (15, 7) would affect the slope of the line of best fit?

Given two points from Line A and Line B. Which line has the larger slope?

Line A: (-2,3) & (6,-1)
Line B: (-2,-5) & (1,7)