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受欢迎的微积分 >

f(x)=4-5x^2

解答

f (x) = 4 - 5 x^{2}

解答

Domain : - \infty < x < \infty

Range : f (x) \leq 4

X 截距 : (\frac{2}{5}, 0), (- \frac{2}{5}, 0), Y 截距 : (0, 4)

Vertex : 极大值 (0, 4)

Inverse : - \frac{x - 4}{5}, - - \frac{x - 4}{5}

+1

间隔符号

Domain : (- \infty, \infty)

Range : (- \infty, 4]

求解步骤

4 - 5 x^{2}

的定义域

: - \infty < x < \infty

4 - 5 x^{2}

的值域:

f (x) \leq 4

4 - 5 x^{2}

的轴截距点

:

X 截距

: (\frac{2}{5}, 0), (- \frac{2}{5}, 0),

Y 截距

: (0, 4)

4 - 5 x^{2}

的顶点:

极大值

(0, 4)

4 - 5 x^{2}

的反函数:

- \frac{x - 4}{5}, - - \frac{x - 4}{5}

作图

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