slopeintercept x-y=-4

解答

斜率截距

x - y = - 4

y = x + 4

求解步骤

x - y = - 4

转换为斜率-截距形式:

y = x + 4

对于

y = mx + b

形式的直线方程，斜率为

m

且

y

轴截距为

b

y = x + 4

mi d p o in t (- 4, 6), (4, - 2)

e x t re m e f (x) = (x + 4)^{\frac{2}{3}} - 1

d o main \frac{1}{x ^{4} - 5 x ^{2} + 4}

r an g e f (x) = 2 cos (3 x)

d o main \frac{x}{9 - x ^{2}}