Mathematics for IGCSE & O level - Graphs Of Functions (Section 1 - No. 35)
Which statements are true about a parabola?
It is symmetrical.
It is formed by a cubic equation.
It can have one or two x-intercepts.
It is always a straight line.
Explicació
Parabolas are symmetrical and may intersect the x-axis zero, one, or two times.