Algebra 2 Topic 1 (1.1-1.4)

Front

What is an x-intercept?

Back

An x-intercept is a point where a graph crosses the x-axis, meaning the y-coordinate is zero.

Front

How do you find the x-intercepts of a function?

Back

To find the x-intercepts, set the function equal to zero and solve for x.

Front

What is the domain of a function?

Back

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

Front

What is the domain of the absolute value function?

Back

The domain of the absolute value function is (-infinity, infinity), as it can take any real number as input.

Front

What does it mean for a function to be translated?

Back

A translation moves a graph horizontally and/or vertically without changing its shape.

Front

How do you translate a function left or right?

Back

To translate a function left, subtract from x; to translate right, add to x.

Front

How do you translate a function up or down?

Back

To translate a function up, add to the function; to translate down, subtract from the function.

Front

What is a piecewise function?

Back

A piecewise function is a function defined by different expressions for different intervals of the domain.

Front

How do you determine the domain of a piecewise function?

Back

The domain of a piecewise function is the union of the domains of each piece.

Front

What is the notation for an interval that includes its endpoints?

Back

The notation for an interval that includes its endpoints is called a closed interval, denoted with brackets [ ] .