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It is known that the intercept of y = KX + k-2x-3 is 2
y=(k-2)x+(k-3)
So the intercept is K-3 = 2
k=5
So y = 3x + 2
When y = 0, x = - 2 / 3
So the coordinates of the intersection of the line and the x-axis are (- 2 / 3,0)
It is known that the line y = KX + B passes through points a (1,0) and B (- 1, m), and the intercept on the Y axis is the root sign 3,1. Find the analytical expression of the line and the value of M 2 to illustrate the function
When x changes, the function value y changes
∵ the line y = KX + B passes through a (1,0) and (0, √ 3)
Get the equations
0=k+b
√3=b
∴k=-√3 b=√3
∴y=-√3x+√3
∵ y = - √ 3x + √ 3 through B (- 1, m)
Substituting coordinates into M = 2 √ 3
2. ∵ K is less than 0
The larger the value of X, the smaller the value of Y
Given that the line y = KX + B is parallel to the line y = - 2x, and the intercept on the Y axis is 2, the analytical expression of the line is obtained
Two lines are parallel, k = - 2
Intercept 2, B = 2
So y = - 2x + 2
How to find the intercept of y = KX + B on X axis
Y = 0 on X-axis
y=kx+b
So x = - B / K
So the intercept on the x-axis is - B / K
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