Find the domain and range of the quadratic function whose graph is described.
-The vertex is $( 1 , - 14 )$ and the graph opens down.
A) Domain: $( - \infty , \infty )$
Range: $( - \infty , - 14 ]$
B) Domain: $( - \infty , 1 ]$
Range: $( - \infty , - 14 ]$
C) Domain: $( - \infty , \infty )$
Range: $[ - 14 , \infty )$
D) Domain: $( - \infty , \infty )$
Range: $( - \infty , 1 ]$

Question

Quizplus · Accepted Answer

Since the vertex is (1,-14) and the graph opens down, the maximum value occurs at the vertex and the range is all values less than or equal to -14. The domain for quadratic functions is always all real numbers, so the answer is choice A.

Find the Domain and Range of the Quadratic Function Whose (1,−14)( 1 , - 14 )(1,−14)

Find the Domain and Range of the Quadratic Function Whose $( 1 , - 14 )$