SOLUTION: Determine whether the number is rational or irrational. If it is irrational, find two consecutive integers between which its graph lies on the number line square root of -81

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Question 59986This question is from textbook Alegbra Concepts and Applications
: Determine whether the number is rational or irrational. If it is irrational, find two consecutive integers between which its graph lies on the number line
square root of -81 This question is from textbook Alegbra Concepts and Applications

Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
sqrt%28-81%29+=+sqrt%28%2881%29%28-1%29%29 = 9sqrt%28-1%29+=+9i or, more accurately: +/-9i
Since this is a complex number (0, 9i) with no real number part, you cannot graph it on a number line because a number line contains only real numbers.