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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

4. Graphing a Function Rule

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Exercise 14 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.

$x$	$- 5 x + 12$	$y$	$(x, y)$
$0$	$- 5 (0) + 12$	$12$	$(0, 12)$
$1$	$- 5 (1) + 12$	$7$	$(1, 7)$
$2$	$- 5 (2) + 12$	$2$	$(2, 2)$

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.

Subchapter links

Lesson Check p.257

Practice and Problem-Solving Exercises p.257-259

Standardized Test Prep p.259

Mixed Review p.259