a car traveling at a constant speed of 51 miles per hour. The formula for the distance traveled at the end of t hours is f(t)=51t which variable is the output.

A) hours
B) distance traveled
C) Speed
D) time

Question

a car traveling at a constant speed of 51 miles per hour. The formula for the distance traveled at the end of t hours is f(t)=51t which variable is the output.


A) hours
B) distance traveled
C) Speed
D) time

mathmale · Answer

You are multiplying speed by time together.
The unit of measurement for speed is miles per hour.
That for time is hours.

Multiply the units together:$$\frac{ miles }{ hour}hours$$

vincentblackshadow · Answer

how sure are you? the subject is functions btw

mathmale · Answer

@vincentblackshadow :  I'm very sure.  What doubts have you?  Simplify the expression (of units).  What unit of measurement is left?  And what quantity does that represent?