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Pearson Algebra 1 Common Core, 2015

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Pearson Algebra 1 Common Core, 2015 View details

Common Core Cumulative Standards Review

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Exercise 1 Page 720

We are given a table of values and we want to find a function that describes the data. To find one we will analyze the values.


x	- 2	- 1	0	1
f(x)	- 3	- 1	1	3

As we can see, f(x) is always the double of x plus 1. Let's see it in a table!

x	Function	f(x)
- 2	( 2)(-2) + 1	- 3
- 1	( 2)(-1) + 1	- 1
0	( 2)(0) + 1	1
1	( 2)(1) + 1	3

Now we will write this information as a function. f(x)= 2x + 1 Therefore, the correct option is D.

Subchapter links

Exercises p.720-722