Exploring Functions, Domain, and Range

What must be true for a set of values to be considered a function?

• X values must be less than Y values

• Y values must be greater than X values

• X values must not repeat

• Y values must not repeat

How should domain and range be ordered?

• Randomly

• From least to greatest

• Alphabetically

• From greatest to least

What test can be used on a graph to determine if it represents a function?

• Circle test

• Vertical line test

• Diagonal line test

• Horizontal line test

Given f(x) = -5x + 3, what is the value of y when x = 2?

• -13

• 13

• -7

• 7

If f(x) = -5x + 8 and the range is 38, what is the domain?

• 8

• 6

• -8

• -6

What does the notation H(-4) indicate in function notation?

• H is multiplied by -4

• H is divided by -4

• H is evaluated at -4

• H is added to -4

In an inequality, where should the variable be placed?

• It doesn't matter

• In the middle

• On the right

• On the left

How is a compound inequality with two endpoints written?

• With the variable in the middle and two inequalities

• With the variable on the left and one inequality

• With the variable on the right and one inequality

• With the variable in the middle and one inequality

What does a closed circle on a number line indicate?

• The value is included

• The value is excluded

• The value is less than

• The value is greater than

If an inequality has one endpoint and an arrow going to the left, how is it written?

• X is greater than the endpoint

• X is less than the endpoint

• X is equal to the endpoint

• X is not equal to the endpoint