Functions

What is a function in mathematics?

• A rule that assigns exactly two output values for each input value

• A mathematical equation that cannot be graphed

• A rule that assigns exactly one output value for each input value

• A collection of numbers

Tags

CCSS.8.F.A.1

What are the two special names given to the input and output sets in a function?

• Multiplier and divisor

• Variable and constant

• Addend and sum

• Domain and range

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

What does the Vertical Line Test determine?

• If a graph can be divided into two equal parts

• If a graph represents a function by checking for one-to-many relations

• If a graph is symmetrical

• If a graph represents a linear function

Which of the following is NOT a function?

• y = 3x + 2

• y squared = x

• y = x + 1

• y = 2x

What is the domain of a function?

• The graphical representation of the function

• The set of all possible input values

• The mathematical rule of the function

• The set of all possible output values

What notation is commonly used to represent a function?

• h(x) - y

• g = x + y

• f(x) = y

• x(y) = z

Tags

CCSS.HSF.IF.A.2

What is the range of a function?

• The set of all possible input values

• The difference between the highest and lowest values

• The set of all possible output values

• The maximum value of the function

What kind of function is represented by a straight line on a graph?

• Quadratic function

• Cubic function

• Trig function

• Linear function

Why can't the equation 'y squared equals x' be considered a function?

• Because it produces more than one output value for a single input value

• Because it does not involve any variables

• Because it only produces positive output values

• Because it can be graphed as a straight line

How can functions be graphed?

• By plotting the input values on the x-axis and the rule on the y-axis

• By treating the input and output values as ordered pairs and plotting them on the coordinate plane

• By drawing a vertical line for each input value

• By listing all possible input values in a table

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.B.5