Evaluating Function Notation and Input-Output Values

What is the formula used to convert Celsius to Fahrenheit?

• f(c) = 5/9 * c + 32

• f(c) = 9/5 * c + 32

• f(c) = c + 32

• f(c) = 9/5 * (c - 32)

If you want to convert 22 degrees Celsius to Fahrenheit, what value do you substitute for c in the formula?

• 32

• 9/5

• 5/9

• 22

What is the first step in converting 22 degrees Celsius to Fahrenheit using the formula?

• Multiply 22 by 5/9

• Add 32 to 22

• Multiply 22 by 9/5

• Subtract 32 from 22

What is the result of multiplying 22 by 9/5?

• 198/5

• 22

• 32

• 71.4

What is the common denominator used to add 198/5 and 32?

• 22

• 9

• 32

• 5

What is the Fahrenheit equivalent of 22 degrees Celsius?

• 198 degrees

• 71.4 degrees

• 32 degrees

• 22 degrees

If f(c) equals -14, what is the first step to find the value of c?

• Add 32 to -14

• Multiply -14 by 9/5

• Subtract 32 from -14

• Divide -14 by 9/5

After isolating 9/5c, what is the next step to solve for c?

• Multiply both sides by 5/9

• Add 32 to both sides

• Divide both sides by 9/5

• Subtract 32 from both sides

What is the Celsius value when the Fahrenheit temperature is -14?

• -14 degrees

• 22 degrees

• 32 degrees

• -25.5 degrees

What is the approximate value of -230/9 in degrees Celsius?

• 32 degrees

• -14 degrees

• -25.5 degrees

• 22 degrees