What is the domain and range of $f (x) = x^{3} + 5$ $f(x) = x^3 + 5$ ?

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Answer 1 · 2015-08-04T12:26:02

Domain: $(- \infty, + \infty)$ $(-oo, +oo)$
Range: $(- \infty, + \infty)$ $(-oo, +oo)$

Your function is defined for any value of $x in RR$ , so you have no restrictions on its domain $->$ its domain is $(-oo, +oo)$ .

The same can be said for its range. The function can take any value in the interval $(-oo, +oo)$ .

graph{x^3 + 5 [-8.9, 8.88, -4.396, 4.496]}

Answer 2 · 2015-08-04T12:27:18

Domain and range of $f(x) = x^3 + 5$

graph{x^3 + 5 [-20, 20, -10, 10]}

Domain: (-infinity, +infinity)
Range (-infinity, +infinity)

What is the domain and range of f(x) = x^3 + 5f(x)=x3+5f(x) = x^3 + 5?