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Popular >

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

Popular Examples

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

h (t) = \frac{t ^{2} - 4 t + 2}{t ^{2} - 5}

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

f (x) = - x^{3} + 3 x^{2} - 2

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

26 sin (0.5 x - 2) + 68

range of f(x)=17 range

f (x) = 17

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

f (x) = \frac{4 x - 3}{6 - 3 x}

Frequently Asked Questions (FAQ)

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