Give the domain and range of the relation.
-$$y = 9 x ^ { 4 }$$
A) domain: $( - \infty , \infty )$; range: $( \infty , \infty )$
B) domain: $( - \infty , \infty )$; range: $[ 0 , \infty )$
C) domain: $[ 0 , \infty )$; range: $[ - 9 , \infty )$
D) domain: $( - \infty , \infty )$; range: $[ 9 , \infty )$

Question

Quizplus · Accepted Answer

The domain of $y = 9x^4$ is all real numbers because any real number can be substituted for $x$, resulting in a real number for $y$. The range is $[0, \infty)$ because raising any real number to the fourth power and multiplying by 9 will result in a non-negative number, starting from 0 (when $x = 0$).

Give the Domain and Range of the Relation y=9x4y = 9 x ^ { 4 }y=9x4

Give the Domain and Range of the Relation $y = 9 x ^ { 4 }$