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What is the slope formula? What do you know about parallel lines?

What is the slope formula? What do you know about parallel lines? What do you know about perpendicular lines? What is the distance formula? If you don’t know the distance formula, what is another way you could figure out the length of a slanted line?.

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What is the slope formula? What do you know about parallel lines?

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  1. What is the slope formula? What do you know about parallel lines? What do you know about perpendicular lines? What is the distance formula? If you don’t know the distance formula, what is another way you could figure out the length of a slanted line?

  2. 13.7 The Midpoint Formula. The Point Dividing a segment in a Given Ratio

  3. Theorem 13-5 The midpoint formula • Given p1 = (x1, y1) and P2 = (x2, y2). The midpoint of P1 and P2 is the point • P = x1+x2, y1 + y2 2 2

  4. Find the midpoint (-6,9) (5,-7)

  5. Find the midpoint (-4,6) (-6,-2)

  6. Find the b if the midpoint is (-2.5,.5) (2,b) and (-7,-8)

  7. Find the coordinates of c A(-6,4) B(9,4) C

  8. Theorem 13-6 • If P is between P1 and P2 and P1P /PP2= r then P = x1 + rx2, y1 + ry2 1+r 1+r

  9. Find the coordinates of C if AC/BC equals a ratio of 3 A (-6,9) B C (9,0)

  10. Find the coordinates of C if AC/BC equals a ratio of 2/3 A (-6,9) C B (9,0)

  11. Theorem 13-6 • If P is between P1 and P2 and P1P = r then P = x1 + rx2, y1 + ry2 • If r = 1, then what would your formula be? 1+r 1+r

  12. What are the coordinates of two points which trisect the segment having endpoints (2,-3) and (8,9)

  13. 12. Given that D and E are midpoints. Prove AE BD Hint: find the coordinates of D and E C(0,3m) E D A(-m,0) B(m,0)

  14. Pg. 429 (1,2a-d,3,5,7,8,12)

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