Question 22 of 35intermediate🔧 ApplyShort Answer4 marks

The function ‘tt’ which maps temperature in degree Celsius into temperature in degree Fahrenheit is defined by t(C)=9C5+32t(C) = \frac{9C}{5} + 32. Find

(i)

t(0)t(0)

Answer

t(0) = 32

(ii)

t(28)t(28)

Answer

t(28) = 82.4

(iii)

t(−10)t(-10)

Answer

t(-10) = 14

(iv)

The value of CC, when t(C)=212t(C) = 212.

Answer

C = 100

Explanation

This question tests the understanding of evaluating a function at given values and finding the input when the output is known. The function t(C) = (9C/5) + 32 converts Celsius to Fahrenheit. Parts (i), (ii), and (iii) require direct substitution, while part (iv) requires solving a linear equation.