What are functions?

What is a function?

• A relationship between two quantities in which every input corresponds to exactly one output.

• A relationship between two quantities in which there is two inputs have the same output.

Tags

CCSS.8.F.A.1

What is the set of input values of a function?

• The domain

• The range

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the set of output values of a function?

• The domain

• The range

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What is the relationship between the input and the output values called of a linear equation? Select all that apply.

• The rate of change

• Common ratio

• Common difference

• All of the above

Tags

CCSS.HSF-LE.A.1B

There is a line parallel to the x-axis. What is this line called? Is this line a function?

• The line is a horizontal line. No it is not a function

• The line is a vertical line. Yes it is a function.

• The line is a vertical line. No it is not a function.

• The line is a horizontal line. Yes it is a function.

There is a line parallel to the y-axis. What is this line called? Is this line a function?

• The line is a horizontal line. No it is not a function.

• The line is a vertical line. Yes it is a function.

• The line is a vertical line. No it is not a function.

• The line is a horizontal line. Yes it is a function.

How can you tell if a line is a function? Select all that apply.

• If it passes the vertical line test, then it is a function.

• If there is one output value for every input value in the table, then it is a function.

• If it is in the form of y = mx+b, or x = a, where a is an integer, then it is a function.

• All of the above.

Is the equation x = 5 a function?

• Yes

• No

Tags

CCSS.8.F.A.1

Is this graph a function?

• Yes

• No

What equation matches this graph?

• y = 2x + 3

• y = 1/2x + 3

• y = 1/2x - 3

• y = 2x - 3

Tags

CCSS.8.F.B.4

CCSS.HSF.LE.A.2