Mathematics for IGCSE & O level - Sketching Curves (Section 4 - No. 35)
In a quadratic equation, what is the effect of a negative 'a' value?
The parabola opens upwards.
The parabola opens downwards.
The parabola has no turning point.
The parabola becomes a straight line.
توضیح
A negative 'a' makes the parabola open downwards.