en

English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Functions >

range of-x^2-8x+9

Solution

range

- x^{2} - 8 x + 9

Solution

f (x) \leq 25

+1

Interval Notation

(- \infty, 25]

Solution steps

Vertex of

- x^{2} - 8 x + 9 :

Maximum

(- 4, 25)

For a parabola

a x^{2} + b x + c

with Vertex

(x_{v}, y_{v})

If

a < 0

the range is

f (x) \leq y_{v}

If

a > 0

the range is

f (x) \geq y_{v}

a = - 1,

Vertex

(x_{v}, y_{v}) = (- 4, 25)

f (x) \leq 25

Graph

Popular Examples

domain of f(x)=ln(((2-x))/x)

domain of f(x)=(sqrt(x-8))/(x(x-9))

perpendicular 3y+6x=9

inverse of 1/(x^3-1)

inverse of f(x)= 2/(x+1)

Frequently Asked Questions (FAQ)

What is the range of-x^2-8x+9 ?
The range of-x^2-8x+9 is f(x)<= 25