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Question
Classify the following polynomials as polynomials in one-variable, two variables etc:
`xy+yx+zx`
Solution
`xy+yx+zx` is a polynomial in 3 variables `x, y, z.`
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Case Study -1
The figure given alongside shows the path of a diver, when she takes a jump from the diving board. Clearly it is a parabola.
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Basketball and soccer are played with a spherical ball. Even though an athlete dribbles the ball in both sports, a basketball player uses his hands and a soccer player uses his feet. Usually, soccer is played outdoors on a large field and basketball is played indoor on a court made out of wood. The projectile (path traced) of soccer ball and basketball are in the form of parabola representing quadratic polynomial.
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