Unit Test: Relations and Functions

Provide a real-world example of a relation different than the ones used in class. For example, you are NOT allowed to use the example of student ages to students' heights.

Tags

CCSS.8.F.A.1

Represent the following relation as a mapping diagram {(2,7),(-8,1),(1,7),(3,7)}

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

Given the relation y = 3x - 1, what is the output if the input is 7?

Answer explanation

Substitute 7 for each x you see in the equation. Then use order of operations.

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

How would you solve the following problem? Please explain in as much detail as possible.

Given the Relation y=3x-1, what is the output if the input is 2?

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

If f(x) = x + 4, find f(1).

Answer explanation

Substitute 1 for each x you see in the equation. Then use order of operations.

Tags

CCSS.HSF.IF.A.2

If g(x) = 2x, find g(5).

Answer explanation

Substitute 5 for each x you see in the equation. Then use order of operations.

Tags

CCSS.HSF.IF.A.2

A ______ is a set of pairs of input and output values; can be represented as a set of ordered pairs, a mapping diagram, a table, a graph, a context, or an equation.

Tags

CCSS.8.F.A.1

The value, variable, or quantity that determines another based on the relation or function rule. Usually the x-values in a set of ordered pairs.

• Relation

• Function

• Input

• Output

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

All of the x-values or inputs are part of which set?

• Domain

• Range

• Relation

• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1

All of the y-values or outputs are called what?

• Domain

• Range

• Relation

• Function

Tags

CCSS.8.F.A.1

CCSS.HSF.IF.A.1