By measuring the width of the circle or sphere radius is half of the diameter
Hello.
is a quadratic function, because it has an
(x squared, or x times x) term.
Here's what linear functions look like:

A graph of a linear function is a line.
Quadratic functions look like so:

A graph of a quadratic function is a parabola.
Therefore, the given function is a quadratic function.
I hope this helps.
Have a nice day.

Answer:
90 and 270 maybe neg 270
Step-by-step explanation:
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Answer:
n - (-15) is the answer
Step-by-step explanation: