91.4k views
2 votes
Find a minimum or maximum of a quadratic function. Specify max or min. Give coordinates.

f(x) = 3x² - 12x + 1

1 Answer

5 votes

Final answer:

The quadratic function f(x) = 3x² - 12x + 1 has a minimum value at the point (2, -11), found by determining the vertex of the parabola.

Step-by-step explanation:

To find the maximum or minimum of the quadratic function f(x) = 3x² - 12x + 1, we need to determine the vertex of the parabola represented by the function. Since the coefficient of is positive, the parabola opens upwards, indicating that the vertex is a minimum point.

The vertex of a quadratic function in the form ax² + bx + c can be found using the formula -b/(2a) for the x-coordinate. Plugging in our coefficients gives:

x = -(-12) / (2 * 3) = 12/6 = 2

To find the y-coordinate of the vertex, substitute the x-value back into the function:

f(2) = 3(2)² - 12(2) + 1 = 12 - 24 + 1 = -11

Thus, the vertex of the parabola, and the minimum point of the function, is at (2, -11). So, the function has a minimum value of -11 at x = 2.

User Mateus Pires
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories