Solve the Problem $F ( c ) = 1.8 + 32 c$

Solve the problem.
-To convert a temperature from degrees Celsius to degrees Fahrenheit, you multiply the temperature in degrees Celsius by 1.8 and then add 32 to the result. Express F as a linear function of c.

A) $F ( c ) = 1.8 + 32 c$
B) $F ( c ) = 1.8 c + 32$
C) $\mathrm { F } ( \mathrm { c } ) = \frac { \mathrm { c } - 32 } { 1.8 }$
D) $F ( c ) = 33.8 \mathrm { c }$