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Pearson Algebra 2 Common Core, 2011

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Pearson Algebra 2 Common Core, 2011 View details

1. Relations and Functions

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Exercise 23 Page 65

To evaluate a function for a given value of the variable, substitute the value for the variable.

Value: - 132
Ordered Pair: (- 11,- 132)

Practice makes perfect

To evaluate a function for a certain value of x means that we substitute the given value for every instance of x. Let's do this for the given function when x=- 11.

f(x)=11x-11

x= - 11

f( - 11)=11( - 11)-11

a(- b)=- a * b

f(- 11)=- 11* 11-11

Multiply

f(- 11)=- 121-11

Subtract term

f(- 11)=- 132

When x=- 11, the function's value is - 132. The ordered pair that corresponds to this result is (- 11,- 132).

Subchapter links

Lesson Check p.64

Practice and Problem-Solving Exercises p.65-67

Standardized Test Prep p.67

Mixed Review p.67