Answer:
Unit conversion between Rankine and Kelvin is linear.
Unit conversion between degree Celsius and degree Fahrenheit is linear.
Explanation:
Relation between rankine and Kelvin is
[tex]R\ =\ \dfrac{9}{5}\ K[/tex]
So, the plot between Rankine and Kelvin is a straight line with zero intercept and has a slope having value [tex]\dfrac{9}{5}[/tex].
Relation between degrees Celsius and degrees Fahrenheit is given by
[tex]^{\circ}C\ =\ \dfrac{5}{9}\ (^{\circ}F\ -\ 32)[/tex]
So, the plot between degrees Celsius and degrees Fahrenheit is a straight line with slope [tex]\dfrac{5}{9}[/tex] and negative intercept of [tex]\dfrac{160}{9}[/tex].
