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Determine whether the curve is the graph of a function of x. If it is, state the domain and range of the function.

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Domain: $x \in[-2,2] ;$ Range: $y \in[-1,2]$

01:24

Jeffrey Payo

Calculus 1 / AB

Calculus 2 / BC

Calculus 3

Chapter 1

Functions and Models

Section 1

Four Ways to Represent a Function

Functions

Integration Techniques

Partial Derivatives

Functions of Several Variables

Missouri State University

Campbell University

Harvey Mudd College

Boston College

Lectures

04:31

A multivariate function is a function whose value depends on several variables. In contrast, a univariate function is a function whose value depends on only one variable. A multivariate function is also called a multivariate expression, a multivariate polynomial, a multivariate series, or a multivariate function of several variables.

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In calculus, partial derivatives are derivatives of a function with respect to one or more of its arguments, where the other arguments are treated as constants. Partial derivatives contrast with total derivatives, which are derivatives of the total function with respect to all of its arguments.

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when you're looking at a graph. If you want to determine if it's a function, you want to check to see if it passes the vertical line test. Remember, for a function. Every X value must have no more than one y value. So if you pass a vertical line through, you could only go through one point. So if I pass vertical line through lines through at various places here, notice I only go through one point. So yes, this is a function now. What's its domain and what's its range? So for the domain, we want to know what X values it goes through notice. It starts at an X value of negative two and goes over to an X value of two. So the domain in interval notation is negative. 222 That's equivalent to saying negative two is less than or equal to X is less than or equal to two. How about the range? So the range would be the Y values that it's going through. Notice that it's going through a Y value as low as negative one and as high as two and everything in between, so the range would be the interval from negative 1 to 2, and if you writing that as an inequality, it would be negative. One is less than or equal to why is less than or equal to two.

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