44 The Slope Formula · 4.4 Notes Alg1.notebook November 20, 2012 15. The graph shows the height of...
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4.4 Notes Alg1.notebook November 20, 2012 Skills we've learned 1. The table shows the number of bikes made by a company for certain years. Find the rate of change for each time period. During which time period did the number of bikes increase at the fastest rate? 2. Find the slope of each line. Graph. 44 The Slope Formula 5. How can you tell if data is a line? Warmup Answers
Transcript of 44 The Slope Formula · 4.4 Notes Alg1.notebook November 20, 2012 15. The graph shows the height of...
4.4 Notes Alg1.notebook November 20, 2012
Skills we've learned1. The table shows the number of bikes made by a company for certain years. Find the rate of change for each time period. During which time period did the number of bikes increase at the fastest rate?
2. Find the slope of each line.
Graph.
44 The Slope Formula
5. How can you tell if data is a line?
Warmup Answers
4.4 Notes Alg1.notebook November 20, 2012
Graph.
5. How can you tell if data is a line?
44 The Slope Formula
Find the slope using graphs, tables and the slope formula
To see how quickly something changes
4.4 Notes Alg1.notebook November 20, 2012
I. Finding Slope from Graphs
1. 2.
3. 4.
II. Finding Slope by Formula
5. Find the slope of the line that contains (2, 5) and (8, 1).
4.4 Notes Alg1.notebook November 20, 2012
6. Find the slope of the line that contains (–2, –2) and (7, –2).
7. Find the slope of the line that contains (5, –7) and (6, –4).
8. Find the slope of the line that contains (4, 8) and (4, 2)
III. Finding Slope Table or GraphSometimes you are not given two points to use in the formula. You might have to choose two points from a graph or a table.
9.
4.4 Notes Alg1.notebook November 20, 2012
10. The table shows a linear relationship. Find the slope.
11. The graph shows a linear relationship. Find the slope.
IV. Finding Slope in an Equation12.
4.4 Notes Alg1.notebook November 20, 2012
13. Find the slope of the line described by 2x + 3y = 12
V. Application
14. The graph shows the average electricity costs (in dollars) for operating a refrigerator for several months. Find the slope of the line. Then tell what the slope represents.
A slope of 6 mean the cost of running the refrigerator is a rate of 6 dollars per month.
4.4 Notes Alg1.notebook November 20, 2012
15. The graph shows the height of a plant over a period of days. Find the slope of the line. Then tell what the slope represents.
44 p.257 #2 9, 12 18, 23
Hey! It's Thanksgiving!! So don't do the above assignment, instead turn in before you go...44 p.257 #2, 4, 5, 6, 7, 10, 12, 13
*16 problems
