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Tire pressure automobile tire pressure increases about 1 psi (pound per square inch) for each 108f increase in air temperature. at an air temperature of 558f, a tire’s pressure is 30 psi. write an equation that models the tire’s pressure as a function of air temperature.

1 Answer

4 votes

Make the table first:

Tire’s

Pressure | Air Tempt
---------------------------
 30 |  55
 29 |  45
 28 |  35
 27 |  25
 26 |  15
 25 |  5
24.5 |  0


Solution:


P(24.5) = x(24.5 - 24.5) = 0
P(25) = x(25 - 24.5) = 5
     x(0.5) = 5 ------ so x has to be 10

To check:
P(26) = 10(26 - 24.5) = 15

P(T) = 10(T - 24.5)

P(33) = 10(33 - 24.5) = 85

User Adrian Schmidt
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