contestada

What is the domain for the following function?
Y= (x+1)/(x^2+x-6)

A) {x does not equal -1}
B) {x does not equal -3; x does not equal 2}
C) {x does not equal -3}
D) {x does not equal 0}

Respuesta :

mahamahmood95

Answer:

it's B

Step-by-step explanation:

the set of numbers for which a function is defined is called a domain of a function

if a number is not in the domain of a function, then the function is undefined for that number

denominator must not be zero

if we plug -3 then the y

=(-3+1)/(9+-3-6)

=(-2)/9-9

=-2/0

which is undefined for x=-3

now

if we plug 2 we have

(2+1)/(4+2-6)

=3/0

the function is undefined for x=2

so

x≠3, x≠2

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