Unit 3 Practice Day 1&2

Front

What is a function?

Back

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

Front

What is a not a function?

Back

A relation is not a function if at least one input is associated with more than one output.

Front

Identify if the following equation is linear or nonlinear: y = 4x + 6

Back

Linear

Front

Identify if the following equation is linear or nonlinear: y = 7x^3 + 5

Back

Nonlinear

Front

What is the definition of a linear function?

Back

A linear function is a function that graphs to a straight line and can be expressed in the form y = mx + b.

Front

What is the definition of a nonlinear function?

Back

A nonlinear function is a function that does not graph to a straight line and can include curves, parabolas, etc.

Front

How can you determine if a graph represents a function?

Back

A graph represents a function if any vertical line drawn intersects the graph at most once (Vertical Line Test).

Front

What is the slope of the line represented by the equation y = 4x + 6?

Back

The slope is 4.

Front

What is the y-intercept of the line represented by the equation y = 4x + 6?

Back

The y-intercept is 6.

Front

What is the general form of a linear equation?

Back

The general form is Ax + By = C, where A, B, and C are constants.