Question

Josh uses an equation to convert Greg's temperatures, and Greg looks at a table to convert Josh's temperature.

Greg's Table:
(10, -12.2)
(30, -1.1)
(50, 10)
(75, 23.9)
Josh's Equation: J(x) = (9/5)x + 32

Identify quantities in the table and equation. Who is converting from °C to °F, and who is converting from °F to °C? Explain your reasoning.

Answer 1

Josh is converting from Celsius to Fahrenheit using the equation T°F = T°C + 32. Greg is converting from Fahrenheit to Celsius using the table.

Step-by-step explanation:

To convert from °C to °F, use the equation T°F = T°C + 32. Josh's equation J(x) = (9/5)x + 32 is converting from °C to °F, since it adds 32 to the temperature in Celsius and multiplies by 9/5. Greg's table provides temperature values in °C and °F, so he is converting from °F to °C.