Question

A graph is drawn between centigrade temperatures of body along x-axis and corresponding Fahrenheit temperatures along y-axis. Slope of the graph is

• A. 5/9
• B. 9/5
• C. 4/5
• D. 5/4

Answer 1

The correct option is B 9/5

We know, the conversion formula

${}^{o}F=({}^{o}C+\frac{9}{5})+32$

${}^{o}F=\frac{9}{5}\left({}^{o}C\right)+32$

(Comparing it with $y=mx+c)$

where $y={}^{o}F$ $x={}^{o}C$

$m=3/5$ $C=32$

Thus, graph will be as follow