What is the domain and range for $y = 2 x^{3} + 8$ $y = 2x^3 + 8$ ?

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Answer 1 · 2018-04-20T13:58:19

Domain: $x =$ $x=$ all real numbers
Range: $y =$ $y=$ all real numbers

There are no divisions or square roots, so $x =$ $x=$ all real numbers.

Since it is a positive $x^{3}$ $x^3$ function, $y$ $y$ 's end behavior is down and up, so $y =$ $y=$ all real numbers.

What is the domain and range for y = 2x^3 + 8y=2x3+8 y = 2x^3 + 8?