Ch. 2 - Functions and Graphs

Blitzer8th EditionCollege AlgebraISBN: 9780136970514Non è quello che usi tu?Cambia libro di testo

Blitzer 8th Edition

Ch. 2 - Functions and Graphs

Problema 96

Capitolo 3, Problema 96

In Exercises 95–96, let f and g be defined by the following table: Find |ƒ(1) − f(0)| − [g (1)]² +g(1) ÷ ƒ(−1) · g (2) .

Guida verificata passo dopo passo

Step 1: Identify the values of f(x) and g(x) from the given table for the specific inputs. Look up f(1), f(0), f(-1), g(1), and g(2) in the table provided in the problem.

Step 2: Compute the absolute difference |f(1) - f(0)|. Subtract f(0) from f(1), then take the absolute value of the result.

Step 3: Square the value of g(1). This means calculating [g(1)]² by multiplying g(1) by itself.

Step 4: Divide g(1) by f(-1). Perform the division g(1) ÷ f(-1). Ensure that f(-1) is not zero to avoid division by zero.

Step 5: Substitute all the computed values into the expression |f(1) - f(0)| - [g(1)]² + g(1) ÷ f(-1) · g(2). Simplify the expression step by step to reach the final result.

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Function Evaluation

Function evaluation involves substituting a specific input value into a function to determine its output. For example, if f(x) is a function, then f(1) means to find the output of f when the input is 1. Understanding how to evaluate functions at given points is crucial for solving problems that require calculating specific values from a function.

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Order of Operations

The order of operations is a set of rules that dictates the sequence in which mathematical operations should be performed to ensure consistent results. Commonly remembered by the acronym PEMDAS (Parentheses, Exponents, Multiplication and Division, Addition and Subtraction), this concept is essential for correctly simplifying expressions and solving equations, especially when multiple operations are involved.

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Absolute Value

Absolute value refers to the distance of a number from zero on the number line, regardless of direction. It is denoted by vertical bars, such as |x|, and is always non-negative. Understanding absolute value is important for interpreting expressions that involve differences between function outputs, as it affects the final result by ensuring it is expressed as a positive quantity.

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Parabolas as Conic Sections Example 1

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