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Popular Functions >

range of-x^2-4x-2

Solution

range

- x^{2} - 4 x - 2

Solution

f (x) \leq 2

+1

Interval Notation

(- \infty, 2]

Solution steps

Vertex of

- x^{2} - 4 x - 2 :

Maximum

(- 2, 2)

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}) = (- 2, 2)

f (x) \leq 2

Graph

Popular Examples

domain of h(t)=(t^2-4t+2)/(t^2-5)

extreme f(x)=-x^3+3x^2-2

range of 26sin(0.5x-2)+68

range of f(x)=(4x-3)/(6-3x)

asymptotes of f(x)=(x^2-5x-6)/(x^2-2x-3)

Frequently Asked Questions (FAQ)

What is the range of-x^2-4x-2 ?
The range of-x^2-4x-2 is f(x)<= 2