Writing the Equation of a Line Review

Algebra I Review - Writing Linear Equations

Objective

​To write and use slope-intercept and point-slope form of linear equations

Point-Slope Form

Example

If that's the case:

Solve for y

Check out the graphs of the two equations:

You try:

Multiple Choice

Write the equation in point-slope form of the line through the point $$\left(-6,\ -5\right)$$ with a slope of $$\frac{2}{3}$$

• $$y-6=\frac{2}{3}\left(x-5\right)$$

• $$y+5=\frac{2}{3}\left(x+6\right)$$

• $$y-5=\frac{2}{3}\left(x-6\right)$$

• $$y+6=\frac{2}{3}\left(x+5\right)$$

Kick it up a notch

Example

Open Ended

Wite an equation in point-slope form of the line through the points $$\left(10,\ -5\right)\ and\ \left(1,\ -8\right)$$

Applications

Predict

Independent practice

Use the remainder of the time to complete the Writing Linear Equations handout. Turn it in before you leave class.