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6-1: Rate of change & slope

6-1: Rate of change & slope. Review. Independent variable (x) = x axis = domain Dependent variable (y) = y-axis = range Examples: Identify the independent and dependent variables. Rate of change/slope. Rate of change = SLOPE=

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6-1: Rate of change & slope

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  1. 6-1: Rate of change & slope

  2. Review • Independent variable (x) = x axis = domain • Dependent variable (y) = y-axis = range • Examples: • Identify the independent and dependent variables.

  3. Rate of change/slope • Rate of change = SLOPE= • Change in dependent variable (y2-y1) vertical rise • ________________________________ = _________ = _____ • Change in independent variable (x2-x1) horizontal run

  4. Finding Slope Using a graph • P310: • Remember: slope = rise/run • On your own paper, plot the following points. Then, find the slope 2 ways. • Just by looking at the graph (rise/run) • Using the formula for slope: y2-y1 / x2-x1 • (4, 3), (-1,1) (0, 4), (2, 1) • (-1, 5), (4, 2) (-4, 2), (1, 2) • (-2, 1), (3, 4) (2, 1), (2, -4)

  5. Slopes of lines • Horizontal Line = 0 slope • Vertical Line = No slope/Undefined • A line with a positive slope slants upward from left to right. • A line with a negative slope slants downward from left to right.

  6. Let's practice!!! In-class practice: Worksheet 6-1, #4-12, 16-21 • After our practice, we’ll play a short review game to test your new knowledge of SLOPE.

  7. HOMEWORK: P.313 #7-26 TAKE NOTES ON CHAPTER 6-2 SLOPE-INTERCEPT FORM How to take notes: Vocabulary Key Concepts Examples Quick Check for each section ****I will give you credit for your notes!

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