Unit 4B Partner Test

Front

What is a function?

Back

A function is a relation where each input (x-value) has exactly one output (y-value).

Front

How can you determine if a relation is a function?

Back

Use the vertical line test: if a vertical line intersects the graph at more than one point, it is not a function.

Front

What is the vertical line test?

Back

A method to determine if a graph represents a function by checking if any vertical line crosses the graph more than once.

Front

What does it mean if a relation is not a function?

Back

It means that at least one input is associated with multiple outputs.

Front

What is an ordered pair?

Back

An ordered pair is a pair of numbers (x, y) that represent a point on a graph.

Front

What is the solution to the equation y = x - 2 when x = 3?

Back

(3, 1) because when x = 3, y = 3 - 2 = 1.

Front

What is the solution to the equation y = 2x + 1 when x = 0?

Back

(0, 1) because when x = 0, y = 2(0) + 1 = 1.

Front

What does the term 'relation' mean in mathematics?

Back

A relation is a set of ordered pairs, which can represent a function or not.

Front

What is the difference between a function and a relation?

Back

A function is a specific type of relation where each input has one output, while a relation can have multiple outputs for a single input.

Front

If a graph has a curve, can it still be a function?

Back

Yes, as long as it passes the vertical line test.