Chapter 6, Lesson 8

6-8.A recognize parallel and perpendicular lines
Using the symbols for is parallel to and is perpendicular to, name all the lines that appear to be parallel and those that appear to be perpendicular.

6-8.B use the slope formula
Find the slope of the line joining the points A(—1, 4) and B(3, —2).

6-8.C write the equation of a line in slope-intercept form
Write, in slope-intercept form, the equation of the line whose slope is —1 and whose y-intercept is 5.