Algebra 1

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

Chapter 9 - Quadratic Functions and Equations - Pull it All Together - Page 588: Task 3


$y=.5x^2+.5x+1$ 56 regions

Work Step by Step

$2-1=1$ $4-2=2$ $2-1=1$ $x=1$ $2=a(1)^2+b*1+1$ $1=a+b$ $x=2$ $4=a(2)^2+2*b+1$ $3=4a+2b$ $a+b=1$ $4a+2b=3$ $-2*(a+b=1)$ $-2a-2b=-2$ $4a+2b-2a-2b=3-2$ $2a=1$ $a=1/2$ $a+b=1$ $1/2+b=1$ $b=1/2$ $y=.5x^2+.5x+1$ $x=10$ $y=.5x^2+.5x+1$ $y=.5(10)^2+.5*(10)+1$ $y=.5*100+5+1$ $y=50+6=56$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.