Determine f(81) if f(x)=x+√(x)+7.

Name: Problem 87, Chapter 7: Intermediate Algebra for College Students
Uploaded: 2021-06-05T17:13:03-08:00
Duration: 1 min 42 s
Channel: Dwijendra Rao
Description: Determine f(81) if f(x)=x+√(x)+7.

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Key Concepts

Square Root

The square root operation finds a number which, when multiplied by itself, results in the given number. This concept is important in algebra, as it is used to simplify and solve equations involving exponents and quadratic equations.

Arithmetic Operations

Arithmetic operations, including addition, subtraction, multiplication, and division, are the basic operations used to manipulate numbers. In the context of evaluating functions, these operations are essential for combining terms and simplifying expressions to obtain the final result.

Evaluating a Function

Evaluating a function involves substituting a given value for the variable in the function's expression and then calculating the resulting value. This step-by-step replacement and calculation is a crucial skill in algebra and calculus when working with functions.

Function

A function represents a relationship between inputs and outputs where each input is associated with one output according to a specific rule or equation. It is a fundamental concept in algebra where the function notation f(x) indicates the output when x is used as an input.

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