Algebra 1

by Hall, Prentice

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 - Page 325: 51

Answer

x-intercept: 4 y-intercept: 3 $3x + 4y = 12$

Work Step by Step

(4,0) and (0,3) are given $m = (3-0)/(0-4)$ $m = -3/4$ $y = mx+b$ $0 = -3/4*4 + b$ $0 = -3 + b $ $0+3 = -3 + b + 3$ $3 = b$ $y = -3/4*x + 3$ $4 *y = 4* (-3/4x + 3)$ $4y = -3x + 12$ $4y +3x = -3x + 12 + 3x$ $3x + 4y = 12$

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