Find the domain and range of the quadratic function whose graph is described.
-The vertex is $( 1 , - 13 )$ and the graph opens up.
A) Domain: $[ 1 , \infty )$
Range: $[ - 13 , \infty )$
B) Domain: $( - \infty , \infty )$
Range: $[ - 13 , \infty )$
C) Domain: $( - \infty , \infty )$
Range: $( - \infty , - 13 ]$
D) Domain: $( - \infty , \infty )$
Range: $[ 1 , \infty )$

Question

Quizplus · Accepted Answer

The domain of any quadratic function is all real numbers, $( - \infty , \infty )$, because there are no restrictions on the input values. Since the graph opens up and the vertex is the lowest point, the range starts from the y-coordinate of the vertex, $-13$, and goes to infinity, $[ - 13 , \infty )$.

Find the Domain and Range of the Quadratic Function Whose (1,−13)( 1 , - 13 )(1,−13)

Find the Domain and Range of the Quadratic Function Whose $( 1 , - 13 )$