中点 (3.5,2.2),(1.5,-4.8)

解答

中点

(3.5, 2.2), (1.5, - 4.8)

(2.5, - 1.3)

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}) = (3.5, 2.2), (x_{2}, y_{2}) = (1.5, - 4.8)

= (\frac{1.5 + 3.5}{2}, \frac{- 4.8 + 2.2}{2})

整理后得

= (2.5, - 1.3)

a sy m pt o t es f (x) = - 2

d o main 3 x - 4

a sy m pt o t es f (x) = \frac{5 x}{9 x ^{2} + 4}

cr i t i c a l y = 2 x^{3} + x^{2} - 13 x + 6

s l o p e y + 5 = - \frac{1}{4} (x - 3)