SOLUTION: I've been working on a Thanksgiving break assignment, and just recently came across a problem I can't to remember how to solve. I need to explain how to write a function with a zer

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Question 815667: I've been working on a Thanksgiving break assignment, and just recently came across a problem I can't to remember how to solve. I need to explain how to write a function with a zero of .5. Any help would be really wonderful as I just can not remember learning this, and my note book doesn't seem to have any good information on it inside either. Thanks in advance.
Found 2 solutions by algebrahouse.com, MathTherapy:
Answer by algebrahouse.com(1659)   (Show Source): You can put this solution on YOUR website!
Work backwards from the solution:

x = 0.5
x - 0.5 = 0 {subtracted 0.5 from each side}
(x - 0.5)(x - 0.5) = 0 {wrote as two binomials multiplied equal to zero}
x(x) + x(-0.5) - 0.5(x) - 0.5(-0.5)= 0 {used foil method}
x² - 0.5x - 0.5x + 0.25 = 0 {multiplied through}
x² - x + 0.25 = 0 {combined like terms}

For more help from me, visit: www.algebrahouse.com
Answer by MathTherapy(10552)   (Show Source): You can put this solution on YOUR website!

I've been working on a Thanksgiving break assignment, and just recently came across a problem I can't to remember how to solve. I need to explain how to write a function with a zero of .5. Any help would be really wonderful as I just can not remember learning this, and my note book doesn't seem to have any good information on it inside either. Thanks in advance. 




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