1 / 11

Lesson 5-5

Lesson 5-5. Writing Equations in Point-Slope Form. Transparency 5. Click the mouse button or press the Space Bar to display the answers. Transparency 5a. Objectives. Write the equation in a line in point-slope form Write linear equations in different forms. Vocabulary.

jennifercampbell
Télécharger la présentation

Lesson 5-5

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lesson 5-5 Writing Equations in Point-Slope Form

  2. Transparency 5 Click the mouse button or press the Space Bar to display the answers.

  3. Transparency 5a

  4. Objectives • Write the equation in a line in point-slope form • Write linear equations in different forms

  5. Vocabulary Point-slope form - an equation of the form y – y1 = m(x – x1), where m is the slope and (x1,y1) is a given point on a nonvertical line

  6. y y x x x-y Coordinate Plane Point Plotting Quadrants II I up 7 left 4 right 5 III IV down 8 (x, y) (-4, 7) (5, -8) x – left or right y – up or down

  7. Write the point-slope form of an equation for a line that passes through (–2, 0) with slope Point-slopeform Simplify. Answer: The equation is Example 1

  8. Point-slopeform Simplify. Answer: The equation is Example 2 Write the point-slope form of an equation for a horizontal line that passes through (0, 5).

  9. Subtract 3x from each side. Write in standard form. Simplify. Answer: The standard form of the equation is Original equation Multiply each side by 4 to eliminate the fraction. Distributive Property Example 3 In standard form, the variables are on the left side of the equation. A,B, and C are all integers.

  10. Write in slope-intercept form. Simplify and slope intercept form. Original equation Distributive Property Add 5 to each side. Example 4 In slope-intercept form is y = mx + b. Answer:

  11. Summary & Homework • Summary: • The linear equation y – y1 = m(x - x1) is written in point-slope form, where (x1,y1) is the given point on a nonvertical line and m is the slope • Homework: • pg 289 16-26, 30-34, 42-48 even

More Related