Checkpoint 7 Practice

 

Stephanie is running a 5K race.

She wants to keep track of her time and her distance throughout the race. Identify the independent and dependent variable.

• The independent variable is the length of the race. The dependent variable is the time.

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  The independent variable is the time. The dependent variable is the distance of the race.

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  The independent variable is the time. The dependent variable is Stephanie's distance.

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  The independent variable is Stephanie's distance. The dependent variable is the time.

Tags

CCSS.6.EE.C.9

Which of the following data points are shown on the scatter plot below? Select all that apply.

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  (10, 1)

• (15, 3)

• (38, 3)

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  (35, 11)

• 
  

  (55, 6)

Tags

CCSS.5.OA.B.3

Which scatter plot includes the given data points?
(1.9, 7.1), (2.8, 2.8), (7.7, 4.9), (5.8, 6)

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• 
• 
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When you make a scatter plot, which variable typically goes on the x-axis?

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  the independent variable

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  the dependent variable

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  the controlled variable

• 
  

  the title

Tags

CCSS.8.SP.A.1

Which line of best fit is NOT accurate for the given scatter plot?

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• 
• 
• 

Tags

CCSS.8.SP.A.2

A person is waiting in line to get into a sporting event.

The data in the table represents the relative position, in feet,

of the person to the entry gate over time in seconds.

(Hint: your answer needs to include a number!)

• The person’s speed is increasing as the person approaches the entry gate.

• The person’s speed is decreasing as the person approaches the entry gate.

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  The person is moving closer to the entry gate at a rate of 1.5 feet per second.

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  The person is moving farther away from the entry gate at a rate of 1.5 feet per second.

Tags

CCSS.HSF.IF.B.4

 

The table below shows the depth of water in a bathtub as it is being filled over time. The data can be modeled by a linear equation where x is the elapsed time in minutes and y is the depth of the water in inches.

What does the y-intercept of the linear equation that models the data indicate?

(Hint: if x were at 0, what would number would the y column be in this table?)

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  The water level rose at a rate of 1 inch per minute.

• The tub was empty when the elapsed time was at 0 minutes.

• There was 1 inch of water in the tub when the water was turned on.

• The water was running for 2 minutes before the depth was measured.

Tags

CCSS.HSF.LE.B.5

What is the equation for the line of best fit on the scatter plot below?

(Hint: First, determine the slope by finding two points and using the equation m=y2-y1x2-x1.

The slope is 0.14-0.23-2= -0.061 = -0.06. 
Next, choose a point to use in the equation y=-0.06x+b to solve for b. (0.2)=-0.06(2)+b)

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  y=0.06x+3

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  y=-0.06x-0.32

• y=0.32x+0.06

• y=-0.06x+0.32

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2