It is known that the parabola y2 = 8x, passing through the point P (1,1) leads to a string, which is bisected at p. the linear equation of the string is obtained Do me a favor Be specific. emergency

It is known that the parabola y2 = 8x, passing through the point P (1,1) leads to a string, which is bisected at p. the linear equation of the string is obtained Do me a favor Be specific. emergency

It is known that the parabola y2 = 8x, passing through the point P (1,1) leads to a string, which is bisected at p. the linear equation of the string is obtained
Let Y-1 = K (x-1)
Substituting parabolic equation into quadratic equation about X
Let X1 + x2 = 2
K value of
Then the linear equation can be obtained