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What is the domain of f(x) = 9 - x^2

2 Answers

6 votes
(-♾, ♾)
(negative infinity, infinity)
User Martoncsukas
by
5.9k points
0 votes

Answer:

Explanation:

The domain of the expression is all real numbers except where the expression is undefined. In this case, there is no real number that makes the expression undefined.

Interval Notation:

(

,

)

Set-Builder Notation:

x

R

Locate the vertex of the parabola.

Tap for more steps...

(

0

,

9

)

The range of a parabola that opens down starts at its vertex

(

0

,

9

)

and extends to negative infinity.

Interval Notation:

(

,

9

]

Set-Builder Notation:

y

9

Determine the domain and range.

Domain:

(

,

)

,

x

Range:

(

,

9

]

,

y

image of graph

User Godlygeek
by
6.1k points