Originally Posted by dwsmith
Being hasty and not wanting to deal with fractions.
Instead multiply through by 2
$-x^2+2x-1+14\rightarrow -x^2+2x+13$
wow thanks very much!

actually multyplying it by two makes the graph twice as large

so (-1/2)x^2 + x + 6.5 is the right answer

thanks again!