ch.4

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.

Which graph represents the graph of a linear function?

• A

• B

• C

• D

Write an equation for the line that represents Penelope's distance, y, from soccer practice after x minutes. Use y = mx + b.

• y = -110x + 2480

• y = 110x + 2000

• y = -110x +2040

• y = 5x +1930

Is this table a function or not a function? 

• Function
• Not a Function

Is this set of ordered pairs a function or not a function? 

• Function
• Not a Function 

Write an equation for the cleaning cost, y, for the number of hours, x. Put in y = mx + b form.

• y = 12x + 20

• y = 20x + 8

• y = 8x

• y = 8x + 20

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

If $f(x)=7x-4$ , find  $f\left(0\right)$ .

•  $f\left(0\right)=-4$ 

•  $f\left(0\right)=-18$ 

•  $f\left(0\right)=17$ 

•  $f\left(0\right)=-25$  

Is this table a function or not a function? 

• Function
• Not a Function

A _____ is a relationship between input and output.

• function

• discrete function

• continuous function

• function notation

• relation