There are two ways of classifying parabolas: By the direction in which they are open: open at the top or at the bottom. By the number of real roots: 2 real, 1 real or no real roots.
Roads are an example of intersecting lines in the real world.
Balls
On Batman(donnanonanon!)
normal_distribution
There are two ways of classifying parabolas: By the direction in which they are open: open at the top or at the bottom. By the number of real roots: 2 real, 1 real or no real roots.
some examples of a parabola are: bridges, McDonald's arches, skateboard ramps, satellite dish, smiles ... and some more
--actually they are used in real life. parabolas are seen in "parabolic microphones" or satellites. and there are others for both ellipses and hyperbolas.
Parabolas are used in real life in light reflectors on cars to create a concentrated beam of intense light. Braking distance and stopping distance are quadratic formulas so their graphs are parabolas. A ball in motion in space has a path of a parabola.
in the real world
Roads are an example of intersecting lines in the real world.
Scales or balances.
A Jarlid
Balls
On Batman(donnanonanon!)
normal_distribution
Railroad tracks, the edges of a book, and the lines on a ruled notebook paper are real-world examples of parallel lines.