Step-by-step explanation:
it is option c. you interchange the value with y and take inverse.

A linear function has 1 as the highest power of the variable.
A. f(x) = 2 - 7x
here, the highest power of the variable x is 1.
Hence it is a LINEAR function.
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B. f(x) = 2 + x + x^2
here, the highest power of the variable x is 2.
Hence it is NOT a linear function.
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here, the highest power of the variable x is 1/2.
Hence it is NOT a linear function.
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I'm not sure, but the average time can be 1/250 seconds.
The answer is x=70 degrees
20/10=2.
14/7=2.
2 dollars per pound.