Graphing Linear Equations and Inequalities

What is the slope-intercept form of a linear equation?

• y = mx + b

• y = mx^2 + b

• y = mx - b

• y = ax + b

How do you graph a linear equation using the slope-intercept form?

• Identify the slope and y-intercept, plot the y-intercept, use the slope to find additional points, and connect the points to graph the linear equation.

• Identify the x-intercept and y-intercept, plot the x-intercept, use the slope to find additional points, and connect the points to graph the linear equation.

• Identify the slope and y-intercept, plot the x-intercept, use the slope to find additional points, and connect the points to graph the linear equation.

• Identify the slope and x-intercept, plot the x-intercept, use the slope to find additional points, and connect the points to graph the linear equation.

What is the standard form of a linear equation?

• Ax + By = D

• Ax + By = E

• Ax + By = F

• Ax + By = C

How do you graph a linear equation using the standard form?

• Rewrite the equation in slope-intercept form, plot the y-intercept, use the slope to find additional points, and connect the points to create the graph.

• Rewrite the equation in point-slope form, plot the x-intercept, use the slope to find additional points, and connect the points to create the graph.

• Rewrite the equation in standard form, plot the x-intercept, use the y-intercept to find additional points, and connect the points to create the graph.

• Rewrite the equation in vertex form, plot the vertex, use the axis of symmetry to find additional points, and connect the points to create the graph.

What is the slope of a horizontal line?

• infinity

• undefined

• 1

• 0

What is the slope of a vertical line?

• zero

• positive

• undefined

• negative

How do you determine the slope of a line given two points on the line?

• slope = (x2 - x1) / (y2 - y1).

• slope = (y2 - y1) / (x2 - x1)

• slope = (y1 - y2) / (x1 - x2).

• slope = (x1 - x2) / (y1 - y2).

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

• 2

• -1

• 0

• 1

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

• 1/2

• undefined

• 1

• 0

How do you graph a linear inequality?

• Graph the corresponding linear equation and shade the region that satisfies the inequality.

• Graph the corresponding linear equation and shade the entire region.

• Graph the corresponding linear equation and do not shade any region.

• Graph the corresponding linear equation and shade the region that does not satisfy the inequality.