CC - Coordinate Systems

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The point (4,-2) is in what quadrant in the standard cartesian coordinate system? *

1 point

Quadrant I

Quadrant II

Quadrant III

Quadrant IV

The point (4, -2) in the computer graphics coordinate system is in what quadrant? *

1 point

Top Left

Top Right

Bottom Left

Bottom Right

In computer graphics, each division of the coordinate system represents 1 *

1 point

Unit-less value

Inch

Pixel

Point

An iPhoneX has a pixel density of 458 pixels per inch. That means if you drew a line 1 inch long, you could fit 458 on that line. This means that each physical pixel is approximately how big?

1 point

0.2 in ~size of an LED

0.02 in ~size of a grain of salt

0.002 in ~size skin cell

0.0002 in ~size of a mitochondria

0.00002 in ~size of a megavirus

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Scale of the Universe

check out http://scaleofuniverse.com/ for an exciting exploration of scale.

Is there anything about this unit that was confusing, unclear, or demonstrably wrong? *

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