Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

Chapter 5 - Linear Functions - 5-5 Standard Form - Practice and Problem-Solving Exercises: 55

Answer

x-intercept: 10 y-intercept: -10/3

Work Step by Step

(-5, -5) and (4, -2) are given $m = (-5--2)/(-5-4)$ $m = -3/-9$ $m= 1/3$ $y=mx+b$ $-5 = 1/3 * -5 +b$ $-5 = -5/3 + b$ $-5+5/3 = -5/3 + b + 5/3$ $-10/3 = b$ $y = 1/3*x -10/3$ Let x = 0: $y = 1/3*0 -10/3$ $y = -10/3$ Let y = 0: $0 = 1/3*x -10/3$ $0 +10/3 = 1/3 *x -10/3+10/3$ $10/3 = 1/3*x$ $10/3*3 = 1/3*x *3$ $10 =x $
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