AnswersConcepts in Probability and Statistics AProbability and Two-Way Tables — Cumulative examQuestion 8
8
RCMultiple Choice
Probability and Two-Way Tables — Cumulative exam
Question 8 • Concepts in Probability and Statistics A
Between which two ordered pairs does the graph of f(x) = x2 + x – 9 cross the negative x-axis?Quadratic formula: x =
Answer
A
(–6, 0) and (–5, 0)B
(–4, 0) and (–3, 0)C
(–3, 0) and (–2, 0)D
(–2, 0) and (–1, 0)