Question

Use function notation to represent the statement: "The amount of rain 90 minutes after it started raining was the same as the amount 120 minutes after it started raining."

a) R(90) = R(120)
b) R(90) - R(120)
c) R(120) = R(90)
d) R(120) - R(90)

Answer 1

The statement is represented in function notation as R(90) = R(120) or R(120) = R(90), indicating that the rain amount is equal at both times.

Step-by-step explanation:

To represent the statement "The amount of rain 90 minutes after it started raining was the same as the amount 120 minutes after it started raining" using function notation, you would write it as either R(90) = R(120) or R(120) = R(90). Both expressions state that the function R, representing the amount of rain, has the same value when evaluated at 90 minutes and 120 minutes. The correct answers based on the given options are a) R(90) = R(120) and c) R(120) = R(90).