Question 1004196
F=(9/5)C+32; C on x-axis, F on Y-axis.
Linear relationship, with slope of 1.8 and Y-intercept of 32.
{{{graph(300,200,-50,40,-50,100,1.8x+32,(5x/9)-(160/9))}}}
C=(5/9)(F-32=(5/9F)-(160/9)
The lower line is C on Y-axis.  They intersect at -40, when both are equal.