Match the Equation of the Parabola with the Appropriate Description $$y = - 3 x ^ { 2 } + 3 x + 2$$

question 41

Multiple Choice

Match the equation of the parabola with the appropriate description.
- $$y = - 3 x ^ { 2 } + 3 x + 2$$

• A) Opens left
• B) Opens right
• C) Opens down
• D) Opens up

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Definitions:

Pitch Line Diameter

Pitch line diameter refers to the diameter of the pitch circle in a gear, where the teeth of two gears in mesh are considered to roll without slipping, crucial for gear design and meshing.

Root Diameter

The diameter of a gear or screw at the base of the teeth or threads, critical for calculating gear strength and meshing characteristics.

Air Pressure Regulator

A device that maintains a constant output air pressure regardless of variations in input pressure and flow requirements.