Unit 3 Test Review

Front

What does the slope of a line represent in a graph?

Back

The slope of a line represents the rate of change of the dependent variable (y) with respect to the independent variable (x). It indicates how steep the line is.

Front

How do you determine which line has the steepest slope?

Back

To determine which line has the steepest slope, compare the absolute values of the slopes of the lines. The line with the largest absolute value of slope is the steepest.

Front

What type of line is represented by the inequality y ≥ -2x - 2?

Back

The inequality y ≥ -2x - 2 is represented by a solid line because the inequality includes 'greater than or equal to'.

Front

What does shading above a line in a graph indicate?

Back

Shading above a line indicates that the solutions to the inequality are all the points above the line, meaning those points satisfy the inequality.

Front

How do you write the equation of a line in slope-intercept form?

Back

The equation of a line in slope-intercept form is written as y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the slope of the line represented by the equation y = 1/3x - 2?

Back

The slope of the line represented by the equation y = 1/3x - 2 is 1/3.

Front

What does the y-intercept represent in a linear equation?

Back

The y-intercept represents the point where the line crosses the y-axis, which is the value of y when x = 0.

Front

How do you identify the y-intercept from the equation of a line?

Back

The y-intercept can be identified from the equation of a line in slope-intercept form (y = mx + b) as the value of b.

Front

What is the significance of a solid line in graphing inequalities?

Back

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

Front

What does the inequality y ≥ -3/4x + 3 represent graphically?

Back

The inequality y ≥ -3/4x + 3 represents a solid line with shading above the line, indicating all points above the line are solutions.