Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.9 - The Coordinate Plane; Graphs of Equations; Circles - 1.9 Exercises - Page 102: 40

Answer

9 units^2

Work Step by Step

The area formula of a triangle is: (1/2)bh To find the base length: take the x-value of the coordinate points at A(-2) and B(4), find the distance: 4-(-2)=6. Your length is 6 To find the value of the height, find the Δy: 4-1=3 . Your height is 3 Plug into the formula = (1/2)(6)(3)=9
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After 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.

GradeSaver will pay $15 for your literature essays
GradeSaver will pay $25 for your college application essays
GradeSaver will pay $50 for your graduate school essays – Law, Business, or Medical
GradeSaver will pay $10 for your Community Note contributions