Question

The speed of sound, S, in meters per second, is a linear function of the temperature of the air through which

the sound travels. Air temperature, T, is measured in degrees Celsius and S=0.6T+331.4. Which of the
following is the best interpretation of the number 331.4 in the context?
a) The speed of sound in meters
per second at 0.6 degrees Celsius
c) The speed of sound in meters
per second at 0 degrees Celsius
b) The increase in speed of sound at 331.4 degrees
per degree of temperature
d) none of the above

Answer 1

C

Explanation:

S = .6T + 331.4

When S = 331.4:

331.4 = .6T + 331.4 <=====you should be able to see this is true when T= 0