Math Problem Statement

Graph the function y = (3/2)x^3 and plot five points on the graph: one point with x = 0, two points with negative x-values, and two points with positive x-values.

Solution

The equation provided is:

y=32x3y = \frac{3}{2} x^3

You are asked to plot five points on the graph of this function: one point for x=0x = 0, two points for negative xx-values, and two points for positive xx-values.

Step-by-step process to find points:

  1. For x=0x = 0: y=32(0)3=0y = \frac{3}{2} (0)^3 = 0 So, the point is (0,0)(0, 0).

  2. For negative values of xx:

    • Let x=2x = -2: y=32(2)3=32(8)=12y = \frac{3}{2} (-2)^3 = \frac{3}{2} (-8) = -12 So, the point is (2,12)(-2, -12).

    • Let x=1x = -1: y=32(1)3=32(1)=321.5y = \frac{3}{2} (-1)^3 = \frac{3}{2} (-1) = -\frac{3}{2} \approx -1.5 So, the point is (1,1.5)(-1, -1.5).

  3. For positive values of xx:

    • Let x=1x = 1: y=32(1)3=32=1.5y = \frac{3}{2} (1)^3 = \frac{3}{2} = 1.5 So, the point is (1,1.5)(1, 1.5).

    • Let x=2x = 2: y=32(2)3=32(8)=12y = \frac{3}{2} (2)^3 = \frac{3}{2} (8) = 12 So, the point is (2,12)(2, 12).

Summary of the points:

  • (0,0)(0, 0)
  • (2,12)(-2, -12)
  • (1,1.5)(-1, -1.5)
  • (1,1.5)(1, 1.5)
  • (2,12)(2, 12)

Plot these points on the graph. The graph should resemble a cubic curve with increasing steepness as x|x| increases.

Would you like any additional explanations or have questions on how to interpret the graph?

Here are five related questions:

  1. How does the coefficient 32\frac{3}{2} affect the shape of the cubic graph?
  2. What would happen to the graph if the exponent of xx was even instead of odd?
  3. How can we find the slope at specific points on a cubic function?
  4. How do negative values of xx affect the function y=32x3y = \frac{3}{2} x^3?
  5. How do you graph transformations of the form y=a(xh)3+ky = a(x - h)^3 + k?

Tip: Cubic functions like y=32x3y = \frac{3}{2}x^3 always pass through the origin, and their graphs exhibit symmetry about the origin, called odd symmetry.

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Math Problem Analysis

Mathematical Concepts

Algebra
Graphing functions
Cubic functions

Formulas

y = (3/2)x^3

Theorems

Graphing cubic functions

Suitable Grade Level

Grades 9-12