中点 (2,-4),(6,4)

解答

中点

(2, - 4), (6, 4)

(4, 0)

求解步骤

(x_{1}, y_{1}), (x_{2}, y_{2})

的中点:

(\frac{x _{2} + x _{1}}{2}, \frac{y _{2} + y _{1}}{2})

(x_{1}, y_{1}) = (2, - 4), (x_{2}, y_{2}) = (6, 4)

= (\frac{6 + 2}{2}, \frac{4 - 4}{2})

整理后得

= (4, 0)

d o main f (x) = 2 x^{2} + 4 x + 3

in v erse y = \frac{- 3}{x + 4}

d o main f (x) = \frac{3 x}{( x ^{2} - 25 )}

f re q u e n cy \frac{1}{π} cos (3 x)

in f l ec t i o n f (x) = x^{3} - 3 \cdot x