Unit 1 Review Questions

Front

What is the first step to evaluate the function f(x) = 2x + 1 at x = 1?

Back

Plug a 1 in for all the x's.

Front

What is the rule that represents the sequence if t(n) = -3n + 17?

Back

The rule is t(n) = -3n + 17.

Front

What set of values makes the table a function if the domain includes Mango, Banana, and Blueberry?

Back

The set {Mango, Banana, Blueberry} makes the table a function.

Front

How do you express the interval (22, 98] in set-builder notation?

Back

{x | 22 < x ≤ 98 }.

Front

What does W(5) = 75 mean in the context of the function W(x) where x is inches of rain?

Back

With 5 inches of rain, there are 75 wildflowers growing.

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input.

Front

What is the difference between a function and a relation?

Back

A function is a specific type of relation where each input has a unique output.

Front

What is set-builder notation?

Back

Set-builder notation is a shorthand used to describe a set by stating the properties that its members must satisfy.

Front

How do you determine if a relation is a function using a vertical line test?

Back

If a vertical line intersects the graph at more than one point, the relation is not a function.

Front

What is the domain of a function?

Back

The domain is the set of all possible input values (x-values) for the function.