Value range of quadratic function y Quadratic function y = 3 (X-6) ^ 2 + 9, y increases with the increase of X, then x should be greater than 6, or should be greater than or equal to 6

It should be greater than 6, which is an increasing function (y increases with the increase of x) in the domain of definition (6, + ∞). The domain of definition means that f (x) x increases when the value of F (x) x is 6 ＜ x ＜ + ∞, so it should be greater than 6, and the interval of domain of definition (a, b) is a ＜ x ＜ B

RELATED INFORMATIONS

1. In the quadratic function, we know the value range of X and the value range of y to find a and B When - 2
2. Quadratic function y = - 1 / 3 (x-1) ^ 2 + 3, the value range of the independent variable is___ The value range of Y is__
3. What is the relationship between the value of Y and the value range of X in quadratic function?
4. What does the quadratic function ABC decide
5. The value range of quadratic function Given the quadratic function y = x & # 178; + (M + 3) x + m + 2, then - 1
6. Quadratic function [value range] Given the quadratic function [y = x & sup2; - 4x-3], if - 1 ≤ x ≤ 6, then the value range of Y is_________ .
7. How to calculate the value range of mathematical quadratic function
8. Which coordinates do a, B and C of y = ax ^ 2 + BX + C in quadratic function image represent?
9. How does the value of H and K of quadratic function affect the image position
10. Given the quadratic function y = a (x + k) 2 + K, no matter what the value of K is, the vertex of the function image is always in the A. Y = X. B. y = - X. C. X axis. D. Y axis, friendly tips; do not answer, to the whole process Oh!
11. When a quadratic function gives you the value range of X, how to find the value range of Y The square of quadratic function y = x-2x-3 when 1 ＜ x ≤ 3, the value range of Y. please explain in detail, I want to understand the method
12. The concept of quadratic function Definition: a function of shape is called a quadratic function of X General form: Conditions:
13. Basic concepts of quadratic function What a stands for, B stands for, C stands for! There are also related formulas!
14. The concept of quadratic function
15. What are the meanings of a, B and C of quadratic functions of one variable? For example, a represents the opening size and function image opening direction, B, C represents what?
16. Definition of quadratic function of one variable?
17. What is a quadratic function and how can I understand it?
18. How to understand the image of quadratic function? I don't know how to draw the image of quadratic function, where are a, B, C in the image? Where are B / - 2A and 4ac-b ^ 2 / 4A in the function image
19. Quadratic function. 1. The quadratic function y = AX2 + BX + C passes through (1, - 1) (2,1) (- 1,1) to find the analytic expression of the quadratic function 2. The vertex of the parabola y = X2 - (a + 2) x + 9 is on the x-axis 3. Given that the image of quadratic function intersects with X axis at two points a (- 2,0) B (3, O), and the maximum value of the function is 2, find the analytic expression of quadratic function
20. Does the vertex formula of quadratic function not only know the vertex, but also know a coordinate?