Lesson 4-2 Writing Equations in Slope-Intercept Form – We practiced writing an equation of a line in slope-intercept form given the slope and one point. Then we wrote equations of a line in slope-intercept form given two points.
Lesson 4-3 Writing Equations and Point-Slope Form – We practiced writing linear equations in different forms. Then we wrote an equation of a line using the point-slope form given the coordinates of one known point on the line and the slope of that line.
Lesson 4-4 Parallel and Perpendicular Lines – We practiced writing an equation of a line that passes through a given point, parallel to a given line. Then we practiced writing an equation of a line that passes through a given point, perpendicular to a given line. We were given an equation in standard form, which we converted to slope-intercept form to identify the slope of the line. Then we used point- slope form to obtain the new equation of the line parallel or perpendicular to the given line.