Find the domain and range of the quadratic function whose graph is described.
-The minimum is $- 3$ at $x = - 1$.
A) Domain: $( - \infty , \infty )$
Range: $( - \infty , - 3 ]$
B) Domain: $( - \infty , \infty )$
Range: $[ - 3 , \infty )$
C) Domain: $( - \infty , \infty )$
Range: $[ - 1 , \infty )$
D) Domain: $[ - 1 , \infty )$
Range: $[ - 3 , \infty )$

Question

Quizplus · Accepted Answer

The minimum value of the function is -3, which occurs at x = -1. The domain of the function is all real numbers, since the parabola extends infinitely in both directions. The range of the function is all real numbers greater than or equal to -3, since the parabola opens upward.

Find the Domain and Range of the Quadratic Function Whose −3- 3−3

Find the Domain and Range of the Quadratic Function Whose $- 3$