Write the Word or Phrase That Best Completes Each Statement $a , b$

Short Answer

Write the word or phrase that best completes each statement or answers the question.
-Find real numbers $a , b$ , and c such that the graph of the function $y = a x ^ { 2 } + b x + c$ contains the points $( - 2 , - 4 )$ , $( 1$ , $- 1 )$ , and $( 3 , - 19 )$ .