Algebra 2 Quiz 2-1

What is a relation?

• A set of pairs of input and output values

• An equation that represents an output value in terms of an input value

• A function where each element of the domain corresponds with exactly one element in the range

• A graph that passes the vertical line test

Which of the following is NOT a way to represent a relation?

• Ordered pairs

• Mapping diagram

• Graph

• Vertical line test

What is the domain of a relation?

• The set of all input values

• The set of all output values

• The x-coordinates of the ordered pairs

• The y-coordinates of the ordered pairs

Which of the following is a function?

• A mapping diagram with arrows going from input to output

• An ordered pair with different x-coordinates

• A graph that passes the vertical line test

• A table with repeat values of the x-coordinate

What is the range of a relation?

• The set of all input values

• The set of all output values

• The x-coordinates of the ordered pairs

• The y-coordinates of the ordered pairs

What is the purpose of the vertical line test?

• To determine if a relation is a function

• To find the domain and range of a relation

• To graph a relation

• To solve for the center and radius of a circle

What is function notation?

• An equation that represents an output value in terms of an input value

• A set of pairs of input and output values

• A way to represent a relation using ordered pairs

• A technique to determine if a relation is a function

What is the dependent variable in a function?

• The input value

• The output value

• The x-coordinate of the ordered pairs

• The y-coordinate of the ordered pairs

What is the domain of the function f(x) = 3x + 2?

• All real numbers

• Positive integers

• Negative integers

• Even numbers

What is the output of the function f(x) = -2x + 5 when x = 1/4?

• 1/2

• 2

• 9/2

• 5