Functions Part 1 Review

What is the definition of function?

• Has inputs and outputs
• Every input has only ONE output
• Inputs have different outputs every time
• x-values and y-values

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Which set of values is a function?

• (9,5) (10,5) (9,-5) (10,-5)
• (3,4) (4,-3) (7,4) (3, 8)
• (6,-5) (7, -3) (8, -1) (9, 1)
• (2, -2) (5, 9) (5, -7) (1, 4)

Tags

CCSS.8.F.A.1

Which mapping diagram is not a function?

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Is the graph a function?

• Yes, because every input has multiple outputs

• Yes, because it passes the vertical line test

• No, because it passes the vertical line test

• No, because every input has multiple outputs

The equation  $y=\frac{1}{2}x\ +\ 4$  represents a function where x is the input and y is the output. Select all statements that are true. 

• The graph is a linear function

• The graph is a non linear function

• The graph is a straight line

• The graph is not a straight line

• The graph is proportional

Is the equation y = 2x + 3 linear?

• Yes

• No

Is the equation  $y\ =\ 2^{x\ }+\ 3$  linear? 

• Yes

• No 

Is the equation -3 + 2x = y linear?

• Yes

• No

Is the equation 3x=y linear?

• Yes

• No

Is the equation  $3x^2=y$  linear? 

• Yes

• No