Math Problem Statement

Solve

Find the vertex of the quadratic function f(x) = 4x^2 - 16x + 10.

Solution

To find the vertex of the quadratic function f(x)=4x216x+10f(x) = 4x^2 - 16x + 10, we can use the vertex formula.

For a quadratic function in the form f(x)=ax2+bx+cf(x) = ax^2 + bx + c, the x-coordinate of the vertex is given by:

x=b2ax = -\frac{b}{2a}

Here, the coefficients are:

  • a=4a = 4
  • b=16b = -16
  • c=10c = 10

Let's calculate the x-coordinate of the vertex:

x=162×4=168=2x = -\frac{-16}{2 \times 4} = \frac{16}{8} = 2

Now that we have the x-coordinate, we can substitute it back into the function to find the y-coordinate:

f(2)=4(2)216(2)+10=4(4)32+10=1632+10=6f(2) = 4(2)^2 - 16(2) + 10 = 4(4) - 32 + 10 = 16 - 32 + 10 = -6

So, the vertex of the function f(x)=4x216x+10f(x) = 4x^2 - 16x + 10 is at the point (2,6)(2, -6).

Do you want more details or have any questions?

Here are 5 related questions that could help you expand your understanding:

  1. How can you determine if the vertex is a maximum or minimum point?
  2. How would you complete the square for the quadratic function to find the vertex?
  3. What does the graph of f(x)=4x216x+10f(x) = 4x^2 - 16x + 10 look like?
  4. Can you find the roots of the quadratic function using the vertex form?
  5. How does changing the coefficient aa affect the position of the vertex?

Tip: The vertex form of a quadratic equation is another useful method for finding the vertex directly. The vertex form is f(x)=a(xh)2+kf(x) = a(x-h)^2 + k, where (h,k)(h, k) is the vertex.

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Math Problem Analysis

Mathematical Concepts

Quadratic Functions
Vertex of a Parabola
Algebra

Formulas

x = -b/(2a) to find the x-coordinate of the vertex
Substitute x to find the y-coordinate

Theorems

Vertex formula of a quadratic function

Suitable Grade Level

Grades 9-11