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Point-Slope Form

Point-Slope Form. What we Know so far…. Slope Intercept Form. Where m is the slope and b is the intercept. What we Know so far…. Slope. Where two points are given as (x 1 ,y 1 ) and (x 2 ,y 2 ). The New Stuff… Write equations. Slope-intercept form is:.

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Point-Slope Form

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  1. Point-Slope Form

  2. What we Know so far…. Slope Intercept Form Where m is the slope and b is the intercept

  3. What we Know so far…. Slope Where two points are given as (x1,y1) and (x2,y2)

  4. The New Stuff… Write equations Slope-intercept form is: Where m is the slope and b is the y-intercept Example: Find the equation of the line with slope -2 and y-intercept 8 y = -2x + 8 Easy if I know the y-intercept… but if I don’t?

  5. The New Stuff… Point- Slope Form Point- Slope form is: Where m is the slope and (x1,y1) is the given point that the line goes through

  6. The New Stuff… Point- Slope Form Point- Slope form is: Where does this equation come from?

  7. Using Point-Slope Form to graph 5 4 3 2 1 -5 -4 -3 -2 -1 1 2 3 4 5 -1 -2 -3 -4 -5 Slope is Point is (2,3)

  8. Manipulate Point-Slope Form to Slope-Intercept form Simplify

  9. Using Point-Slope Form to graph 5 4 3 2 1 -5 -4 -3 -2 -1 1 2 3 4 5 -1 -2 -3 -4 -5 Slope is Point is (4,-3)

  10. Manipulate Point-Slope Form to Slope-Intercept form

  11. Your turn

  12. Homework Pg. 304 #2 to 8 even Write slope and point Plot graph Write equation in slope intercept form

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