Intermediate Algebra: Connecting Concepts through Application

Published by Brooks Cole
ISBN 10: 0-53449-636-9
ISBN 13: 978-0-53449-636-4

Chapter 1 - Linear Functions - 1.5 Finding Equations of Lines - 1.5 Exercises: 39

Answer

y = 2x+7

Work Step by Step

Pick two points: (0,7) and (2,11) Find the slope using ($y_{2}-y_{1})$ $\div$ $(x_{2}-x_{1})$: $(11-7) \div (2-0)$ $=4\div2$ = 2 = m y=mx+b y=2x+b 11=2(2)+b 11=4+b 7=b And so the line is y = 2x+7
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