Britney is about to ride the fastest roller coaster in the world. The function f(x) gives the speed of the roller coaster in miles per hour x seconds after the ride starts. What does f(25) 123 tell you? Choices: (A)The roller coaster is moving faster than 123 miles per hour 25 seconds after the ride starts. (B)The roller coaster is moving faster than 25 miles per hour 123 seconds after the ride starts.

Question

Britney is about to ride the fastest roller coaster in the world. The function f(x) gives the speed of the roller coaster in miles per hour x seconds after the ride starts. What does f(25) > 123 tell you?   Choices: (A)The roller coaster is moving faster than 123 miles per hour 25 seconds after the ride starts. (B)The roller coaster is moving faster than 25 miles per hour 123 seconds after the ride starts.

Bytelearn · Accepted Answer

Understand function and variable: Understand the function f(x) and the variable x. The function f(x) represents the speed of the roller coaster in miles per hour x seconds after the ride starts. The variable x represents the number of seconds after the ride starts.Interpret given inequality: Interpret the given inequality f(25) > 123. The inequality tells us that the speed of the roller coaster is greater than 123 miles per hour at the specific time of 25 seconds after the ride starts.Choose correct interpretation: Choose the correct interpretation of the inequality f(25) > 123 from the given choices. (A) The roller coaster is moving faster than 123 miles per hour 25 seconds after the ride starts. (B) The roller coaster is moving faster than 25 miles per hour 123 seconds after the ride starts. Since f(x) is the speed after x seconds, and we are given f(25), we are looking at the speed 25 seconds after the ride starts. Therefore, the correct interpretation is that the roller coaster is moving faster than 123 miles per hour 25 seconds after the ride starts.

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