Answer
See explanations.
Work Step by Step
Find the discriminant $b^2-4ac=(1)^2-4(1)(1)=-3\lt0$, thus the quadratic opens up and has no x-intercept meaning the curve will be above the x-axis, that is the solution set is all real numbers.
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 2 - Linear and Quadratic Functions - Section 2.5 Inequalities Involving Quadratic Functions - 2.5 Assess Your Understanding - Page 164: 39
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.
