If the line passing through the point P (- 1,0) is tangent to the circle x2 + Y2 + 4x-2y + 3 = 0, then the intercept of the line on the Y axis is () A. 0B. 1C. 2D. 3

If the line passing through the point P (- 1,0) is tangent to the circle x2 + Y2 + 4x-2y + 3 = 0, then the intercept of the line on the Y axis is () A. 0B. 1C. 2D. 3

Substituting P (- 1, 0) into the circular equation x2 + Y2 + 4x-2y + 3 = 0, the left and right sides are equal, so p is on the circle. From the center coordinate of the circle as C (- 2, 1), KPC = 0 − 1 − 1 − (− 2) = - 1 is obtained, so the slope of the line is k = 1, and the equation is y = x + 1. Let x = 0, and the intercept on the Y axis is 1

1. If the line passing through point P (- 1,0) is tangent to x ^ 2 + y ^ 2 + 4x-2y + 3 = 0 under the circle, then the intercept of the line on the Y axis is?
(just answer)

A: the intercept of this line on the Y axis is 1

If the line passing through the point P (- 1,0) is tangent to the circle x2 + Y2 + 4x-2y + 3 = 0, then the intercept of the line on the Y axis is______ ．

Substituting P into the circle equation, the left and right sides are equal, so p is on the circle. From the center coordinate of the circle as C (- 2,1), KPC = 0 − 1 − 1 − (− 2) = − 1, so the slope of the line is 1, the equation is y = x + 1, let x = 0, and the intercept on the Y axis is 1

The distance between the point (5,7) and the line 4x-3y-1 = 0 is? The intercept of the line x-2y + 6 = 0 on the x-axis is? The intercept of the line on the y-axis is?
Efficiency

2/5
-6
three