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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 16 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.

$x$	$4 x - 5$	$y$	$(x, y)$
$- 1$	$4 (- 1) - 5$	$- 9$	$(- 1, - 9)$
$0$	$4 (0) - 5$	$- 5$	$(0, - 5)$
$1$	$4 (1) - 5$	$- 1$	$(1, - 1)$

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.

Subchapter links

Lesson Check p.257

Practice and Problem-Solving Exercises p.257-259

Standardized Test Prep p.259

Mixed Review p.259