IKMC 2011 - Grades 11-12 - Paper 02 - Self-study Question 17

Question 17

On a standard coordinate plane, A=(1,−10) was marked on $y=ax^2+bx+c$. The axes and most of the parabola were erased, leaving the shown part. Which statement can be false?

Question illustration

$a>0$
$b<0$
$a+b+c<0$
$b^2>4ac$
$c<0$