Math Problem Statement

find the y-intercept and zeros of f(x)=3x^3\sqrt{x}

Solution

To find the yy-intercept and the zeros of the function f(x)=x3f(x) = \sqrt[3]{x}, let's follow these steps:

1. Finding the yy-Intercept:

The yy-intercept occurs when x=0x = 0. Substituting x=0x = 0 into the function:

f(0)=03=0f(0) = \sqrt[3]{0} = 0

So, the yy-intercept is (0,0)(0, 0).

2. Finding the Zeros:

The zeros of the function occur when f(x)=0f(x) = 0. We set the function equal to zero and solve for xx:

x3=0\sqrt[3]{x} = 0

To eliminate the cube root, cube both sides:

x=0x = 0

So, the function has a zero at x=0x = 0.

Summary:

  • yy-intercept: (0,0)(0, 0)
  • Zeros: x=0x = 0

Would you like more details or have any questions?

Here are 5 related questions for further practice:

  1. What is the domain of f(x)=x3f(x) = \sqrt[3]{x}?
  2. How does the graph of f(x)=x3f(x) = \sqrt[3]{x} compare to f(x)=xf(x) = \sqrt{x}?
  3. What are the transformations of f(x)=x+23f(x) = \sqrt[3]{x + 2}?
  4. What is the slope of the tangent line to f(x)=x3f(x) = \sqrt[3]{x} at x=1x = 1?
  5. Find the zeros of the function g(x)=x43g(x) = \sqrt[3]{x - 4}.

Tip: Unlike square roots, cube roots can take any real number, including negative numbers, and they have no restrictions on their domain.

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Math Problem Analysis

Mathematical Concepts

Roots of Functions
Cube Roots

Formulas

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Theorems

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Suitable Grade Level

High School