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Alexander Boyd Christien Anderson. Rate of change and slope. Rate of Change. The ratio of the difference in values of a variable during a time period to the length of that time period. What Is A Positive Slope. If the line is sloping up to the right, the slope is positive (+).
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Alexander BoydChristien Anderson Rate of change and slope
Rate of Change • The ratio of the difference in values of a variable during a time period to the length of that time period
What Is A Positive Slope • If the line is sloping up to the right, the slope is positive (+).
Practice problem #1 Find the slope then graph
What is A Negative Slope • If the line is sloping down to the right, the slope is negative (-).
Practice problem #2 Find the slope then graph
What is A Zero Slope • Horizontal lines have a slope of zero and it does not touch the x axis.
Practice problem #3 Find the slope then graph graph
What is A Undefined Slope • An undefined slope has no y intercept.
Practice Problem #4 Find the slope then graph graph
Can You Identify The Different Types Of Slopes 5. 6. 7. 8. 9.
Answers for Slide 11 • 1.Undefined • 2.Positive • 3.Negative • 4.Undefined • 5.Zero Slope
Summary Tool • Positive Slope: Goes up to the right. • Undefined: Doesn’t have a y intercept. • Zero Slope: Has no x value. • Negative Slope: Goes down to the left.
Practice Problem 10 Identify the Slope
Answer for slide 18 • Slope:1 or y=1x+0
WEB SITES • http://cstl.syr.edu/fipse/graphb/unit8/Unit8b.html • http://www.mathwords.com/u/undefined_slope.htm • http://www.saskschools.ca/curr_content/matha30rev1/lesson3-4/positive.jpg • http://img.sparknotes.com/figures/3/393a0f9064f0cef5c349ab5966e8842d/slope_zero.gif • http://www.basic-mathematics.com/images/slope17.gif Game: • hotmath.com/hotmath_help/games/.../Karappan_Poochi_Sound.swf