given this function fx square root of x2 find f1 Express dom

given this function: f(x)= square root of (x+2)

find f(1)

Express domain of f in interval form

Solution

f(x)= square root of (x+2)

f(1) ; plug x =1 in f(x)

f(1) = sqrt(1+2) = sqrt3

Domain: f(x) = sqrt(x+2)

The term inside square root should be greater than equal to zero

(x+2) >=0

x >=-2

Domain: [ -2 , infinity )