CCSS.Math.Content.8.F.A.1

Pick the correct graph

• A
• B
• C
• D

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CCSS.Math.Content.8.F.A.1

A mathematical definition is a/an _

• Conditional
• Biconditional
• Conclusion
• Conjecture

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CCSS.Math.Content.8.F.A.1

Is this mapping a function or not a function? 

• Function
• Not a Function 

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CCSS.Math.Content.8.F.A.1

g(x) = -3x+7
h(x) = -x-10
Find g(x)/h(x) and the domain restriction

• -3x+7/-x-10 domain restriction x≠7/3
• -3x+7/-x-10 domain restriction x≠ -7/3
• -3x+7/-x-10 domain restriction x≠10
• -3x+7/-x-10 domain restriction x≠ -10

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CCSS.Math.Content.8.F.A.1

Is the relation shown in the mapping a function?

• No, because -1 and 4 are pared with 4.

• Yes, because every input is paired with exactly one output.

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CCSS.Math.Content.8.F.A.1

Given the sequence:

125, 25, 5, ....

Write the rule a_n using the geometric sequence formula:

• a_n = (125)(1/5)^(n-1)

• a_n = 625(1/5)^(n-1)

• a_n = 625(5)^(n-1)

• a_n = 125 + 5n

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CCSS.Math.Content.8.F.A.1

Determine if the relation is a function

• Yes, each input has one output

• Yes, each output has one input

• No, because the pattern is 4

• No, each input is the same as the output

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CCSS.Math.Content.8.F.A.1

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

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CCSS.Math.Content.8.F.A.1

Given this graph is the function of

 $y=x^2-2x-8$  , what is the solution to  $x^2=2x+8$  ?

• (1, 9)
  

• x = {-2, 4}
  

• (0, 8)
  

• x = {5, 2}
  

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CCSS.Math.Content.8.F.A.1

f(x) = x-9 find f(-1)

• -10

• 8

• -8

• 10

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CCSS.Math.Content.8.F.A.1