If the graph of the first order function y = KX + B (K ≠ 0) is shown in the figure, then the solution of the equation KX + B = 0 about X is_________ The equation KX If the graph of the first order function y = KX + B (K ≠ 0) is shown in the figure, then the solution of the equation KX + B = 0 about X is______ The solution of the equation KX + B = 3 is_______ . when x_______ When x, KX + b > 0_______ When x, KX + B < 0______ KX + b > 3

If the graph of the first order function y = KX + B (K ≠ 0) is shown in the figure, then the solution of the equation KX + B = 0 about X is_________ The equation KX If the graph of the first order function y = KX + B (K ≠ 0) is shown in the figure, then the solution of the equation KX + B = 0 about X is______ The solution of the equation KX + B = 3 is_______ . when x_______ When x, KX + b > 0_______ When x, KX + B < 0______ KX + b > 3

This is the question of observing the picture and writing the answer,
There must be an image of the function

If the area of the triangle formed by the image of the first order function y = KX + 2 and the two coordinate axes is 4 unit areas, then find the value of K

The intersection point (- 2 / K, 0) between the image of the first order function y = KX + 2 and the X axis (- 2 / K, 0), and the intersection point with the Y axis (0,2)
1/2×-2/k×2=4
When k > 0, 1 / 2 × 2 / K × 2-4
The solution is: k = 1 / 2
When k

The area of the triangle formed by the image of the first order function y = KX + 4 and the two coordinate axes is 8

Y = x + 4 and y = - x + 4

Given the image crossing point (2.5,0) of the first order function y = KX + B, and the area of the triangle enclosed by the coordinate axis is 5, the expression of this linear function is obtained

From x = 2.5, y = 0, i.e. 2.5k + B = 0
x=0,y=b,
Area = 1 / 2 * 2.5 * | B | = 5
Therefore: | B | = 4
b=4,k=-4/2.5=-8/5
If B = - 4, k = 8 / 5
Therefore, y = - 8x / 5 + 4 or y = 8x / 5-4

Given that the first order function y = KX + B (K ≠ 0) image crossing point (0, 2), and the area of triangle enclosed by two coordinate axes is 2, the analytic formula of this function is obtained

∵ the first order function y = KX + B (K ≠ 0) image crossing point (0, 2),
∴b=2，
Let y = 0, then x = - 2
k，
∵ the area of the triangle formed by the function image and the two coordinate axes is 2,
∴1
2×2×|-2
K | = 2, namely | - 2
k|=2，
When k > 0, 2
K = 2, k = 1;
When k < 0, - 2
K = 2, k = - 1
Therefore, the analytic formula of this function is: y = x + 2 or y = - x + 2

Given the image crossing point (2.5,0) of the first order function y = KX + B, and the area of the triangle enclosed by the coordinate axis is 6.25, the expression of this linear function is obtained

y=-2x+5
Or y = 2x-5

When k=__ The area of the triangle formed by the image of the linear function y = KX + 6 and the coordinate axis is 4

6*|-6/k|/2=4
k=±9/2

When x =?, the area of the triangle formed by the image of the first order function y = KX + 6 and the coordinate axis is 4 dial the wrong number When k =? Time

When x = 0, y = 6, when y = 0, x = - 6 / K
∴S△=|x|*|y|/2=4===>[6/|k|]*6/2=4===>|k|=36/8=9/2
∴k=±9/2

If the area of the triangle formed by the straight line y = KX + 6 and two coordinate axes is 24, what is the value of the constant k?

∵ if x = 0, then y = 6;
Let y = 0, then x = - 6
k，
The intersection points of the straight line and the coordinate axis are (0, 6), (- 6) respectively
k，0），
∴S=1
2×|-6
K | × 6 = 24, k = ± 3
4．

It is known that the line y = KX + B is parallel to the line y = - 3x + 4, and the intersection point of the line y = 2x-6 is on the x-axis, and the analytic formula of this function is obtained

∵ the line y = KX + B is parallel to the line y = - 3x + 4,
If the images of two first-order functions are parallel, then the coefficients of the first-order term must be equal
∴k=-3，
And the intersection point of the line y = 2x-6 is on the X axis, 2x-6 = 0, and the coordinates of the intersection point are (3, 0),
The line y = - 3x + B passes through point (3,0) and substituting
That is: - 9 + B = 0, then B = 9
The analytic formula of the function is: y = - 3x + 9