Question

C=59(F−32)

The equation above shows how temperature F, measured in degrees Fahrenheit, relates to a temperature C, measured in degrees Celsius. Based on the equation, which of the following must be true?

Answer 1

Option D is correct because statements I and II are true.

What is temperature scale?

A temperature scale is a system used to measure and express temperature. Examples include Celsius, Fahrenheit, and Kelvin scales, each with specific reference points.

Given that C = 5/9(F - 32)

Let's test each option

Express F as subject

F = 9C/5 + 32

I) When C increases by 1

F1 = 9(C + 1)/5 + 32

= 9C + 9/5 + 32

= [9C/5 + 32] + 9/5

F1 = F + 9/5 This is true

II) If the C increases by 1⁰C

F1 = F + 1.8 degree Fahrenheit

III) This is not true

1⁰C gives 1.8⁰F not 0.5555⁰F

Therefore, option D is correct because statements I and II are true.

Complete question