An Introduction to Functions

Choose the best situation for the graph.

• A car is moving at a constant speed for several minutes. When it approaches a red light, it slows down and comes to a stop.
• A plant grows steadily and then has a growth spurt during the rainy season. It remains the same height for a while and then grows steadily again.
• A family buys a fish tank and some fish. After two weeks, they buy some more fish. After two more weeks, they buy even more fish.
•  A monkey swings from a high branch to a lower branch. He climbs along the branch. Then he jumps to a higher branch and takes a nap.

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CCSS.HSF.IF.B.4

Which is another name for the x-value.

• input
• output

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which is another name for the y-value.

• input
• output

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What does y equal when x equals 0?

• 0
• 3
• 1
• 5

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What does y equal when x equals 2?

• 0
• 3
• 1
• 5

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CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Function or not a function?

• yes
• no

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CCSS.8.F.A.1

Function or not a function?

• yes
• no

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CCSS.8.F.A.1

Which ordered pair below would prevent this table from being a function?

• (10, 10)
• (2, 4)
• (6, 1)
• (-2, 0)

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CCSS.8.F.A.1

Given h(x) = 5 - 9x, find h(2). 

• h(2) = 13
• h(2) = -13
• h (2) = 23
• h(2)= -23

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CCSS.HSF.IF.A.2

Given the function f(x) = 2x² -3x    
 Evaluate f(-1)

• 1
• -5
• 5
• -1

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CCSS.HSF.IF.A.2