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(A) The relationship between temperature in Celsius $(C)$ and Fahrenheit $(F)$ is given by the formula: $\frac{C}{100} = \frac{F - 32}{180}$.Rearrangi

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Having a $+ve$ intercept on the $Y-$axis

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(A) The relationship between temperature in Celsius $(C)$ and Fahrenheit $(F)$ is given by the formula: $\frac{C}{100} = \frac{F - 32}{180}$.Rearranging this to express $F$ in terms of $C$,we get: $F = \frac{9}{5}C + 32$.Comparing this with the equation of a straight line,$y = mx + c$,where $y = F$ and $x = C$:Here,the slope $m = \frac{9}{5}$ (which is positive) and the $Y-$intercept $c = 32$ (which is positive).Since the $Y-$intercept is positive,the line intersects the $Y-$axis at a point above the origin. Thus,the graph has a positive intercept on the $Y-$axis.

If a graph is plotted taking the temperature in Fahrenheit along the $Y-$axis and the corresponding temperature in Celsius along the $X-$axis,it will be a straight line:

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