Question

IfC and F denote the temperatures in Celsius and Fahrenheit scale, and

C =5/ 9
(F-32)
Draw the graph of this equation, taking Con, z-axis and F on y-axis
From the graph, find the value of C when F = 50°
From the graph, find the value of F when C = 35°
​

Answer 1

Step-by-step explanation:

Since the equation between F and C is given, the graph can be drawn as shown above.

(ii) Given c=30, so F=

5

9

×30+32=86 F.

(iii) Given F=95, so C=

9

5

×(F−32)=35 C.

(iv) Given C=0, so F=32 and if F=0, we get C=−

9

160

.

(v) Put F=C=x in given equatin, we get

5

4x

=−32, from which we get x=−40

Yes, there is a temperature which is numerically the same in both fahrenheit and celsius, the numerical value is −40.