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Popular Functions >

range of f(x)=x^2-7

Solution

range

f (x) = x^{2} - 7

Solution

f (x) \geq - 7

+1

Interval Notation

[- 7, \infty)

Solution steps

Vertex of

x^{2} - 7 :

Minimum

(0, - 7)

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}) = (0, - 7)

f (x) \geq - 7

Graph

Popular Examples

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Frequently Asked Questions (FAQ)

What is the range of f(x)=x^2-7 ?
The range of f(x)=x^2-7 is f(x)>=-7