# Tutor profile: Sundaram Vytheswaran E.

Inactive

Sundaram Vytheswaran E.

On line tutor for more than 10 dears with TutorVista, Focus Edumatics.

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## Questions

### Subject: Pre-Calculus

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Question:

Show that a cubic function has at least one real zero.

Inactive

Sundaram Vytheswaran E.

Answer:

As per the end behavior of a cubic function, the graph of the function will approach towards infinity at one end and towards negative infinity at the other end, depending on the sign of the leading coefficient. Therefore, the graph has to cross the x-axis at least at one point. It means the function must have at least one real zero.

### Subject: Geometry

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Question:

Each interior angle of a regular polygon is twice as the exterior angle at the same vertex. Name the polygon.

Inactive

Sundaram Vytheswaran E.

Answer:

Regular hexagon.

### Subject: Algebra

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Question:

A ball is dropped from a height of 10 feet on a plain ground. Every time the ball bounces back by 60% of the previous height. What is the total distance traveled by the ball before it comes to rest?

Inactive

Sundaram Vytheswaran E.

Answer:

40 feet.

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