CCSS.Math.Content.8.F.B.4

Write the equation in point-slope form of the line that passes through the given point and has the given slope.
(4, -7); m = -1/4

• y +7 = -1/4(x - 4)
• y - 4 = -1/4(x + 7)
• y+ 7 = 4(x - 4)
• y - 7 = -1/4(x - 4)

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CCSS.Math.Content.8.F.B.4

At 0 seconds, Mrs. Taylor was 10 feet off the ground.  At 5 seconds, she was 20 feet off the ground.  What is her rate in feet per second?

• 10 feet per second
• 5 feet per second
• 2 feet per second
• 6 feet per second

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CCSS.Math.Content.8.F.B.4

Find the slope of the line.

• 1/2
• -1/2
• 2
• -2

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CCSS.Math.Content.8.F.B.4

What is the y-intercept in this table?

• (-2, -2)
• (1, 2)
• (0, 6)
• (6, 0)

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CCSS.Math.Content.8.F.B.4

What does the y-intercept represent?

• It costs $30 for each mile drive.
• There is an initial charge of $30 for the moving van.
• There is an initial charge of $2 for the moving van.
• It costs $1 for every 2 miles driven.

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CCSS.Math.Content.8.F.B.4

Bob has $150 in his savings account and saves $40 per month.

• y=150 + 40

• y=40x + 150

• y=150x + 40

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CCSS.Math.Content.8.F.B.4

Write an equation

m = - 1/2 through ( -2, 4 )

• y = - 3/2x + 3

• y = 3/2x + 3

• y = - 1/2x + 3

• y = 3x - 3/2

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CCSS.Math.Content.8.F.B.4

Which graph represents the equation:

y = x + 2

• 
• 
• 
• 

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CCSS.Math.Content.8.F.B.4

The function f(t) = -2|t - 15| + 50 is graphed and represents weekly sales of shoes, f(t) in $1000s, where t is weeks. What is the maximum sales for one week?

• $40,0000

• $20,0000

• $50,000

• $10,0000

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CCSS.Math.Content.8.F.B.4

Three less than twice a number

• 2x − 3

• 3x − 2

• 3 − 2x

• 2 − 3x

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CCSS.Math.Content.8.F.B.4