Equations of Lines

Slope-intercept form

Basic introduction of slope-intercept form | 8'59''

• Graph the linear equation from the slope-intercept form

• Easy to figure out the slope and the y-intercept

• Easy to understand what the graph is looks like 

Convert standard form to slope-intercept form | 8'39''

• Identify slope and y-intercept from slope-intercept form

• Graph a linear equation from the slope-intercept form

Convert a linear equation from slope-intercept to standard form | 12'08''

🖊️ Practice Problems

Find the slope and y-intercept for each equation

Point-slope form

Basic introduction of point-slope form | 12'56''  *Great form for finding equations of tangent lines in calculus!

• Identify the slope and points from the point-slope form

• Write a line equation from a point and a slope or two points 

• Graph the linear equation from a point-slope form

More info about graphing | 3'57''

• The derivation

🖊️ Practice Problems

Write the equation of the functions in point-slope form & Graph