Answer
slope = 150
Work Step by Step
Use the points (1,970) and (3,1270)
Slope = $m=\frac{y_2-y_1}{x_2-x_1}=\frac{1270-970}{3-1}=300/2=150$
Hence your brain weight is proportional to your age.
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 2 - 2.1 - Linear Equations in Two Variables - 2.1 Exercises - Page 171: 98b
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