### Home > CCG > Chapter 3 > Lesson 3.2.3 > Problem 3-77

3-77.

Examine the graph of line

Find the equation of

. You can calculate the slope of the line by using the coordinates of points

andin the formula below.Find the area and perimeter of

. Write an equation of the line through point

that is perpendicular to. The slopes of perpendicular lines are negative reciprocals.