Math Problem Statement

The graph of the function with serial number i) in column A has the serial number in Column B.

Solution

To match the functions of two variables in Column A with their corresponding graphs in Column B, we need to analyze the given functions and understand their general shapes and properties.

  1. f(x,y)=2x+3yf(x, y) = 2x + 3y:

    • This is a linear function. It represents a plane in three dimensions.
  2. f(x,y)=x2+y2f(x, y) = x^2 + y^2:

    • This is a parabolic surface known as a paraboloid. The graph opens upwards and has a minimum point at the origin (0,0).
  3. f(x,y)=sin(x2+y2)x2+y2f(x, y) = \frac{\sin(\sqrt{x^2 + y^2})}{\sqrt{x^2 + y^2}}:

    • This is a Bessel function. The graph will have a series of peaks and valleys, resembling ripples.
  4. f(x,y)=xe(x2+y2)f(x, y) = xe^{-(x^2 + y^2)}:

    • This function resembles a Gaussian function modulated by xx. It will have a peak at the origin and rapidly decay to zero away from the origin.

Now, let's match each function with its graph:

  1. f(x,y)=2x+3yf(x, y) = 2x + 3y is a plane, corresponding to graph 2.
  2. f(x,y)=x2+y2f(x, y) = x^2 + y^2 is a paraboloid, corresponding to graph 1.
  3. f(x,y)=sin(x2+y2)x2+y2f(x, y) = \frac{\sin(\sqrt{x^2 + y^2})}{\sqrt{x^2 + y^2}} is the ripple-like Bessel function, corresponding to graph 3.
  4. f(x,y)=xe(x2+y2)f(x, y) = xe^{-(x^2 + y^2)} is a Gaussian-like function with a peak at the origin, corresponding to graph 4.

Therefore, the correct matching is:

  • i) with 2
  • ii) with 1
  • iii) with 3
  • iv) with 4

Do you want details or have any questions?

Here are 8 relative questions that expand on this information:

  1. What is a contour plot, and how does it relate to the functions given?
  2. How do you find the critical points of the function f(x,y)=x2+y2f(x, y) = x^2 + y^2?
  3. Can you derive the equation of the tangent plane to f(x,y)=2x+3yf(x, y) = 2x + 3y at a given point?
  4. What are the practical applications of Bessel functions in engineering and physics?
  5. How do you calculate the gradient vector of f(x,y)=xe(x2+y2)f(x, y) = xe^{-(x^2 + y^2)}?
  6. What is the significance of the Gaussian function in statistics?
  7. How do you visualize the function f(x,y)=sin(x2+y2)x2+y2f(x, y) = \frac{\sin(\sqrt{x^2 + y^2})}{\sqrt{x^2 + y^2}} using software tools like MATLAB or Mathematica?
  8. What are the properties of the exponential function e(x2+y2)e^{-(x^2 + y^2)} and its relevance in different scientific fields?

Tip: Always label your axes when plotting functions to clearly represent the variables and their ranges.

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Math Problem Analysis

Mathematical Concepts

Functions
Graphing
Multivariable Calculus

Formulas

f(x, y) = 2x + 3y
f(x, y) = x^2 + y^2
f(x, y) = \frac{\sin(\sqrt{x^2 + y^2})}{\sqrt{x^2 + y^2}}
f(x, y) = xe^{-(x^2 + y^2)}

Theorems

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Suitable Grade Level

Advanced High School or College