<span>f(x<0)=-f(x>0)=-x^2+5x+12
When x>0, x^2-5x-12=12, x=8, y=12
Therefore, f(x)=12 goes through point (8,12).</span>
It is 4170 I believe if my calculations are correct
The percent error is 29%. I posted the equation for percent error on your other question.
In any linear equation the coefficient of the x-term represents ALWAYS the slope.
So it is B. The slope of the line
