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Pearson Algebra 1 Common Core, 2011

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Pearson Algebra 1 Common Core, 2011 View details

1. Organizing Data Using Matrices

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Exercise 39 Page 731

Just like with fractions, we cannot divide by 0 in rational functions.

4

Practice makes perfect

Consider the given rational function. f(x)=5x/x-4 To identify the excluded value, we must remember that the denominator cannot be 0 because division by 0 is not defined. Let's find the value of x that would make the denominator equal to 0.

x-4=0

LHS+4=RHS+4

x=4

If x=4, the value of the denominator is 0. Therefore, the excluded value is 4.

Subchapter links

Lesson Check p.729

Practice and Problem-Solving Exercises p.729-731

Standardized Test Prep p.731

Mixed Review p.731