Write Equations of Lines Chapter 2.4. From Lines to Equations.

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Presentation transcript:

Write Equations of Lines Chapter 2.4

From Lines to Equations

Finding a Second Point When finding a second point, always choose a point that falls on the intersection of two gridlines Otherwise, you won’t be able to exactly read the rise and/or the run

From Lines to Equations

Guided Practice

Given Slope and a Point

Point-Slope Form Example

Slope-Intercept Form Example

Two Methods You may use either method, but you should know both Remember that we use either of these methods when we know the slope and at least one point on the line

Guided Practice

Given Two Points on the Line

Example: Given Two Points on the Line

Guided Practice

Parallel or Perpendicular to Another Line

Guided Practice

Exercise 2.4 Page 101, #3-8, 9-17 odds, odds, odds, odds (21 total)