1. FINDING SLOPE By Ms. Morgan

2. Students will be able to: Find the slope of a line on a coordinate plane.

3. Math Standard: 8.G.13 Determine the slope of a line from a graph and explain the meaning of slope a constant rate of change.

4. Do now: Using the graphing paper, create a coordinate plane. Graph the following points: Value of X Value of Y Pairs (X,Y) -40(-4;0) -21(-2;1) 02(0;2) 44(4;4)

5. How do we find the answer: Value of X Value of Y Pairs (X,Y) -40(-4;0) -21(-2;1) 02(0;2) 44(4;4)

6. New Concept: SLOPE Slope is the ratio of the vertical change to the horizontal change.

7. Types of SLOPES: POSITIVE (going up)NEGATIVE (going down)

8. Types of SLOPES cont.? ZERO SLOPE NO SLOPE

9. How do we find SLOPE? We find SLOPE by measuring RISE OVER RUN

10. How do we find SLOPE cont.? RISE = 2 RUN = 3 SLOPE = 2/3 THIS IS A POSITIVE SLOPE

11. How do we find SLOPE cont.? RISE = 3 RUN = -2 SLOPE = -3/2 THIS IS A NEGATIVE SLOPE

12. On your own: USE LOOSE LEAF PAPER FOR THESE THREE PROBLEMS. THEY WILL BE COLLECTED AND GRADED. PLEASE BE NEAT! Create a table and graph the following equations: Y= 2x - 1 Y= 3x – 4 Write down if it is a Positive or Negative SLOPE. VALUE OF X EQUATIONVALUE OF Y (X;Y) PAIR 0 1 2 3 4

13. BIBLIOGRAPHY http://www.regentsprep.org/regents/math/al gebra/AC1/Llines.htm