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Pearson Algebra 1 Common Core, 2011
PA
Pearson Algebra 1 Common Core, 2011 View details
4. Graphing a Function Rule
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Exercise 18 Page 257

Substitute some arbitrary values for x to find their corresponding y-values.

Practice makes perfect

One way to graph a function rule is by making a table of values and substituting some arbitrary values for x. Doing so will give the corresponding values of y, which we can use to form ( x, y) coordinate pairs.

x 2x-1 y (x,y)
-1 2( -1) - 1 -3 ( -1, -3)
0 2( 0) - 1 -1 ( 0, -1)
1 2( 1) - 1 1 ( 1, 1)
Let's plot these points on a coordinate plane.

By connecting all of our points with a line, we form the graph of the function rule.

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arrow_right Lesson Check p.257
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Lesson Check 3 (Page 257)
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arrow_right Practice and Problem-Solving Exercises p.257-259
Practice and Problem-Solving Exercises 9 (Page 257)
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Practice and Problem-Solving Exercises 11 (Page 257)
Practice and Problem-Solving Exercises 12 (Page 257)
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Practice and Problem-Solving Exercises 24 (Page 258)
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Practice and Problem-Solving Exercises 41 (Page 259)
arrow_right Standardized Test Prep p.259
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