Algebra 1

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

Chapter 9 - Quadratic Functions and Equations - Mid-Chapter Quiz - Page 560: 27


Answers may vary, but one answer is $x^2+4x+2$

Work Step by Step

axis of symmetry is to the left of the y-axis This means $-b/2a < 0$ We can let $-b/2a = -2$ (as an example). $-b/2a = -2$ $-b/2a * 2a = -2*2a$ $-b = -4a$ Let $b=4$ $-4 = -4a$ $-4/-4 = -4a/-4$ $1 = a$ $ax^2+bx+c=0$ $1x^2+4x+2=0$ $x^2+4x+2$ $x^2+4x+2$ $x=-b/2a$ $x=-4/2*1$ $x=-4/2$ $x=-2$ (which is to the left of the y-axis)
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