CCSS.Math.Content.8.F.B.5

Suppose a culture of bacteria begins with 5000 cells and dies by 30% each year. Write an equation that represents this situation.

• y=5000(0.7)^x
• y=30(5000)^x
• y=5000(1.3)^x
• y=5000x^x

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CCSS.Math.Content.8.F.B.5

11, 9, 7, 5, ..

• 7
• 4
• 3
• 2

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CCSS.Math.Content.8.F.B.5

How many times does this object STOP moving?

• None
• Once
• Twice
• Three times

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CCSS.Math.Content.8.F.B.5

Does this graph have a maximum or minimum?

• Minimum
• Maximum

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CCSS.Math.Content.8.F.B.5

What is the vertex?

• (0, - 1)
• (0, 0.5)
• (-1, 0)
• (0.5, 0)

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CCSS.Math.Content.8.F.B.5

Is the function Linear or Nonlinear?

• Linear
• Nonlinear

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CCSS.Math.Content.8.F.B.5

Is the function linear or nonlinear?

• Linear
• Nonlinear

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CCSS.Math.Content.8.F.B.5

Which function is graphed?

• f(x) = 2|x + 2| -4
• f(x) = 2|x - 4| + 2
• f(x) = |x + 2| - 4
• f(x) = -2|x - 4|

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CCSS.Math.Content.8.F.B.5

If the graph of y = ax² + bx + c is narrower, which of the following must be true?

• 0 < a < 1
• a > 1
• c < 0
• c > 0

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CCSS.Math.Content.8.F.B.5

What is the range?

• x≥0

• y≥0

• All real numbers

• {0, 1, 2, 3, 4,...}

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CCSS.Math.Content.8.F.B.5