Evaluating a Function In Exercises 25-28, evaluate the function at the specified values of the independent variable. Simplify the results. See Example 3. f ( x ) = x 2 − 4 x + 1 (a) f ( − 1 ) (b) f ( 1 2 ) (c) f ( c + 2 )
Evaluating a Function In Exercises 25-28, evaluate the function at the specified values of the independent variable. Simplify the results. See Example 3. f ( x ) = x 2 − 4 x + 1 (a) f ( − 1 ) (b) f ( 1 2 ) (c) f ( c + 2 )
Solution Summary: The author calculates the value of f(-1) if the function is x2-4x+1.
Evaluating a Function In Exercises 25-28, evaluate the function at the specified values of the independent variable. Simplify the results. See Example 3.
Evaluate the function f(x) = x-6 at the given value of the variable.
a. f(10)
b. f(3)
a. f(10) = (Simplify your answer.)
b. f(3) = (Simplify your answer.)
Error Analysis Describe the error in finding apolynomial function f with real coefficients that has−2, 3.5, and i as zeros.A function is f(x) = (x + 2)(x − 3.5)(x − i).
2. Summarize what you have learned about functions. Can all relationships between
variables qualify as functions? How can you represent and describe functions? How are
functions useful in the real world?
Chapter 1 Solutions
Calculus: An Applied Approach (MindTap Course List)
Precalculus Enhanced with Graphing Utilities (7th Edition)
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