Algebra Vocabulary - STAAR Review

Front

What is 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 when two lines intersect?

Back

It means there is one solution to the system of equations represented by the lines.

Front

What does the graph of y < 2x + 1 look like?

Back

It is represented by a dotted line and shaded below the line.

Front

What does it mean when two lines are parallel?

Back

It means there is no solution to the system of equations represented by the lines.

Front

Which type of line has an undefined slope?

Back

A vertical line.

Front

What is the slope of a horizontal line?

Back

The slope of a horizontal line is 0.

Front

What does a solid line represent in graphing inequalities?

Back

A solid line indicates that the points on the line are included in the solution set.

Front

What does a dotted line represent in graphing inequalities?

Back

A dotted line indicates that the points on the line are not included in the solution set.

Front

What is the solution to the equation 2x + 3 = 7?

Back

x = 2.

Front

What is the y-intercept of the line represented by the equation y = 3x + 4?

Back

The y-intercept is 4.