Pre/Post Test Functions Sec 1-3 - OakPark

Front

What is a relation in mathematics?

Back

A relation is a set of ordered pairs, where each pair consists of an input (x-value) and an output (y-value).

Front

What is a function?

Back

A function is a special type of relation where each input (x-value) is associated with exactly one output (y-value).

Front

What is the domain of a function?

Back

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

Front

What is the range of a function?

Back

The range is the set of all possible output values (y-values) for a function.

Front

How do you evaluate a function?

Back

To evaluate a function, substitute the given input value into the function's equation and simplify.

Front

What does g(x) = x + 3 represent?

Back

It represents a linear function where the output is the input value increased by 3.

Front

If g(x) = 11, what is the value of x in g(x) = x + 3?

Back

x = 8, because 8 + 3 = 11.

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers (x, y) that represent a point in a coordinate system.

Front

What does it mean for a relation to be a function?

Back

A relation is a function if no x-value is repeated with different y-values.

Front

Evaluate f(x) = 2x + 1 when x = 6.

Back

f(6) = 2(6) + 1 = 13.