Question

solve the problem. 8) the function f described by f(c) = \frac{9}{5}c + 32 gives the fahrenheit temperature corresponding to the celsius temperature c. find the fahrenheit temperature equivalent to -25° c.

Explanation:

Step1: Substitute Celsius value

Substitute $C=-25$ into $F(C)=\frac{9}{5}C + 32$.
$F(-25)=\frac{9}{5}\times(-25)+32$

Step2: Calculate multiplication part

Calculate $\frac{9}{5}\times(-25)$.
$\frac{9}{5}\times(-25)=9\times(-5)= - 45$

Step3: Calculate addition part

Calculate $-45 + 32$.
$-45+32=-13$

Answer:

$-13$