Helpwith finding the domain of
f(x)=7-squar3x+21, and express it using interval notation.
my answer is (-7,infinity). thanks for taking time to check this question.
Helpwith finding the domain of
f(x)=7-squar3x+21, and express it using interval notation.
my answer is (-7,infinity). thanks for taking time to check this question.
Hello,
if your notation means that the (-7) belongs to the domain too, then your answer is correct.
I'm used to a slightly different notation and I would write it like this: [-7; ∞[ Because ∞ is not a real number the infinity doesn't belong to the domain.