Functions Table

Which equation best represents the relationship between x and y in the table shown?

• y= 5x+5

• y=1/5x+5

• y=15x+5

• y=10x+5

Which equation matches the table?

• y = 3x + 9

• y = x + 9 

• y = x + 3

• y = 12x - 3

What is the function of the table?

• y=x+3

• y=x*3

• y=x÷3

• y=x-3

Nancy can type 50 words per minute. Look at the table below to write an equation that matches the data.

• m=50 + w

• w= 50m

• w= 50 + m

• m= 50 - w

NOT A FUNCTION MEANS X REPEATS

• F

• G

• H

• J

Is this table a function?  Explain.

• Yes, because none of the inputs repeat.

• Yes, because the inputs repeat but have the same output

• No because the inputs repeat

• No because the inputs repeat and have different outputs

Is this table a function?  Why?

• Yes, because none of the inputs repeat.

• Yes, because the inputs repeat but have the same output.

• No, because the inputs repeat and have different outputs.

The function f(x) is shown. When is f(x) > 2?

• -4 < x < 0

• -4 < x ≤ 0

• -4 ≤ x ≤ 0

• 0 < x ≤ 4

A table organizing the input, rule and output of a function is called a ______ ______?

• function table

• ordered pair

• linear function

• qualitative graph

Which of the following is NOT true about this function?

• The function is increasing from -3 to 0.

• The function has an x-intercept at (2, 0).

• The function has a y-intercept at (3, 0).

• The function is decreasing from 4 to infinity.