0 degrees Celsius is equal to 32 degrees Fahrenheit:
0 °C = 32 °F
The temperature T in degrees Fahrenheit (°F) is equal to the temperature T in degrees Celsius (°C) times 9/5 plus 32:
T(°F) = T(°C) × 9/5 + 32
or
T(°F) = T(°C) × 1.8 + 32
A graph is plotted taking ooC along the Y-axis and ooF along the X-axis. It is a straight line