Math Problem Statement

Graph the function y = (3/2)x^3. 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 problem in the image asks to graph the function:

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

It also instructs you to plot five points on the graph:

  1. One point at x=0x = 0.
  2. Two points with negative xx-values.
  3. Two points with positive xx-values.

Step-by-Step Solution:

The given function is a cubic function, which means its graph will resemble an "S" curve. Let's calculate the required points.

1. For x=0x = 0:

y=3203=0y = \frac{3}{2} \cdot 0^3 = 0 So, the point is (0,0)(0, 0).

2. For negative xx-values (e.g., x=2x = -2 and x=1x = -1):

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

y=32(1)3=32(1)=32=1.5y = \frac{3}{2} \cdot (-1)^3 = \frac{3}{2} \cdot (-1) = -\frac{3}{2} = -1.5 So, the point is (1,1.5)(-1, -1.5).

3. For positive xx-values (e.g., x=1x = 1 and x=2x = 2):

y=3213=321=1.5y = \frac{3}{2} \cdot 1^3 = \frac{3}{2} \cdot 1 = 1.5 So, the point is (1,1.5)(1, 1.5).

y=3223=328=12y = \frac{3}{2} \cdot 2^3 = \frac{3}{2} \cdot 8 = 12 So, the point is (2,12)(2, 12).

Summary of 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)

Now you can plot these points on the graph provided.


Would you like further details or have any other questions?

Here are 5 follow-up questions you might explore:

  1. How does changing the coefficient of x3x^3 affect the shape of the graph?
  2. What is the general shape of a cubic function like y=ax3y = ax^3?
  3. How would the graph change if the power of xx were even instead of odd?
  4. Can you identify the end behavior of this cubic function as xx approaches \infty and -\infty?
  5. What would happen to the graph if a constant term was added to the function y=32x3+Cy = \frac{3}{2}x^3 + C?

Tip: For cubic functions, the graph always has one inflection point where the curve changes concavity.

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Math Problem Analysis

Mathematical Concepts

Algebra
Cubic Functions
Graphing

Formulas

y = (3/2)x^3

Theorems

Cubic Function Properties

Suitable Grade Level

Grades 9-12