What You Need To Know...
Write an equation of a line or an inequality with given information.
- The benchmark will be assessed using MC (Multiple Choice) and FR (Fill in Response) items.
- Items may give two points on a line, a point and the slope of a line, or its graph.
- Items may require the use of coordinate geometry to find slopes, parallel lines, perpendicular lines, and equations of lines.
- Information given to determine equations of lines may include a table of values, the x- and y-intercepts, two points, the slope and a point, a graph, or an equation.
- Equations of lines may be represented in standard, slope-intercept, or point-slope form.
- Items may require students to rewrite equations of lines from standard form to slope-intercept form, and vice versa.
- Items may require students to identify a linear inequality in slope-intercept form.
- Fill-in response items may require that students provide a slope of a line parallel or perpendicular to a given line.
In a technical drawing class, students are analyzing the side view of a house that has been positioned on a coordinate grid, as shown below.
Which of the following equations best represents the line that contains ?
On the coordinate grid below, line l is perpendicular to .
What is the slope of line l ?
The line AB is graphed on the coordinate grid below.
What is the x-intercept of the line that is perpendicular to line AB at point B?