Now, h = -b/2a. Plug in the values into the formula, and you get: The parabola's axis of symmetry (x = h) is a vertical line passing through the vertex, so as demonstrated above, this is x = 1.

Image caption, You can see that the coins in this formation make a parabola (a u-shaped symmetrical curve). You can see this clearly if you line the coins up with a piece of card and draw a curve ...

Draw a vertical line, using a ruler ... A basketball will create a parabola in the air when thrown into a hoop. A parabola is the shape of a quadratic graph. Understanding this shape can be ...