Function Notation and Functions

Is the relation a function? Why.

• Yes, because the x-value 11 has two y-values pair with it.

• Yes, because each x-value has only one y-value paired with it.

• No, because the x-value 11 has two y-values pair with it.

• No, because each x-value has only one y-value paired with it.

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CCSS.8.F.A.1

Is this a function?

• Yes

• No

• Let me ask my dog...

• Why are there letters in math?

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CCSS.8.F.A.1

Is this mapping a function or not a function? 

• Function

• Not a Function 

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CCSS.8.F.A.1

Is the relation a function? 
{(4,5), (4,-7), (4,2), (4,0), (4,9)}

• Yes

• No

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CCSS.8.F.A.1

If g(x) = 2(-5x +2) + 10, what is the value of g(4)?

Mathematical Equivalence

ON

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CCSS.HSF.IF.A.2

Given h(x) = 5 - 9x, find h(8). 

Mathematical Equivalence

ON

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CCSS.8.F.A.1

CCSS.8.EE.C.7

If g(x) = 6(-8x + 12) + 7, what is the value of g(6)?

Mathematical Equivalence

ON

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CCSS.HSF.IF.A.2

Is this a function? Explain.

• Yes; it passes the horizontal line test.

• No; it is not a straight line.

• Yes; it passes the vertical line test.

• No; there is a line connecting the dots.

For the function f(x) = -3x + 3 find f(0).

• 0

• -3

• 3

• -1

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CCSS.HSF.IF.A.2

Evaluate f(-2) if f(x) = x²+ 3.

• -1

• 1

• 7

• -7

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CCSS.HSF.IF.A.2