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 17 Page 65

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

Value: 71
Ordered Pair: (4,71)

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=4.
f(x)=17x+3
f( 4)=17( 4)+3
f(4)=68+3
f(4)=71
When x=4, the function's value is 71. The ordered pair that corresponds to this result is (4,71).