2023-Algebra 1- 1st Semester Review

Front

What is a linear regression?

Back

A statistical method used to model the relationship between a dependent variable and one or more independent variables by fitting a linear equation to observed data.

Front

What does it mean for a relationship to be functional?

Back

A relationship is functional if each input (x-value) corresponds to exactly one output (y-value).

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the change in y divided by the change in x (rise/run).

Front

What is the equation of a line with an undefined slope?

Back

The equation of a line with an undefined slope is of the form x = a, where 'a' is a constant.

Front

What is the equation of a line parallel to the x-axis?

Back

The equation of a line parallel to the x-axis is of the form y = b, where 'b' is a constant.

Front

What is the slope of a line parallel to the x-axis?

Back

The slope of a line parallel to the x-axis is 0.

Front

What is the slope of a line perpendicular to the x-axis?

Back

The slope of a line perpendicular to the x-axis is undefined.

Front

How do you determine if a line is parallel to the y-axis?

Back

A line is parallel to the y-axis if it has an undefined slope and is represented by the equation x = a.

Front

What does it mean for a line to have a slope of zero?

Back

A line with a slope of zero is horizontal and does not rise or fall as it moves along the x-axis.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, represented as (0, b) in the equation y = mx + b.