If the image of function y = KX's square-6x + 3 intersects with X axis, then the value range of K is () A.K < 3b.k < 3 If the image of function y = KX square-6x + 3 intersects with X axis, then the value range of K is () A.K < 3 b.k < 3 and K ≠ 0 C.K ≤ 3 D.K ≤ 3 and K ≠ 0

∵ the image of quadratic function y = kx2-6x + 3 has intersection with X axis,
The equation kx2-6x + 3 = 0 (K ≠ 0) has real roots,
That is, △ = 36-12k ≥ 0, K ≤ 3, because it is a quadratic function, so K ≠ 0, then the value range of K is k ≤ 3 and K ≠ 0
So D
Do not understand can ask, help please adopt, thank you!

RELATED INFORMATIONS

1. The coordinates of the intersection of the Y-axis and the x-axis of the image with the square of the function y = 9x - 6x + 6 are
2. Given that the image of function y = (K-8) x squared-6x + K has only one intersection point with X axis, the coordinates of the intersection point can be obtained Kneel down for answers... Quick, quick·····
3. Function f (x) = ax ^ 3 - (a + 2) x ^ 2 + 6x-c and G (x) = (1 / 2) (a + 2) x ^ 2 + 3-C
4. The number of intersections of the image of the function y = 2x and y = X2 is () A. 0B. 1C. 2D. 3
5. If the image intersection coordinates of the function y = 3x + A and the function y = - (1,3) x + B are (- 3, - 4), then a=_____ ,b=_______ .
6. What is the coordinate of the intersection of the image of the function y = - 1 / 3x + 2 with the X axis? What is the coordinate of the intersection with the Y axis
7. If the function y = 3x-6 and the image y = - x + 4 intersect at a point, the coordinates of the intersection point are?
8. Let the intersection coordinates of the image with the function y = 1 / X and y = X-1 be (a, b), then the value of 1 / a minus 1 / B is (a, b)
9. Find the number of intersections between the image of the function y = SiNx, X belonging to (0,2 π) and the image of half of the function y One in two of Y is y = one in two
10. If the positive scale function y = 4x and the inverse scale function y = K / x, can the image of these two functions have only one intersection? If so, ask for the coordinates of this intersection
11. 1. Given that the period of function y = f (x) is 2, when x ∈ [0,1], f (x) = x ^ 2, find the value of F (2007) 2. Given that the period of function y = f (x) is t, find the period of function y = f (AX + b) (a > 0)
12. How to draw the image of y = - lgx? How to draw y = lgx image?
13. The image of the function f (x) lg1-x / 1 + X is symmetric about the point
14. The range of function f (x) = | lgx 2-lgx | (x > 0) |1 lgx| In the title (| lgx 2-lgx |) and (| 1 lgx |) are aligned, similar to the appearance of the matrix, which is in an absolute value
15. Given the function f (x) = lgx, the image of the function g (x) = │ f (1-x) │ is approximately
16. Given the function f (x) = lgx, how to draw the image of the function g (x) = f (1-x)?
17. The number of intersections between the image of function f (x) = 1 / 3x ^ 3-x ^ 2-3x-1 and X axis
18. The coordinates of the intersection a of the image of function y = 3x + 1 and X axis are, and the coordinates of the intersection B of function y = 3x + 1 and Y axis are
19. The number of intersections between the image and the x-axis of the function f (x) = 13x3-x2-3x-1 is______ One
20. Function f (x) = 1 + X + x ^ 2 / 2 + x ^ 3 / 3?