Determine if the following relations are functions, and justify why. a) **{(1, −2), (−2, 0), (−1, 2), (1, 3)}
Function?:
Justification:

Roger and natalie travel in similar cars. roger's car drives the two miles to school in 7.5 minutes. natalie drives the same distance in the opposite direction but in only 6.5 minutes. what is true of their velocities?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Consider the graph of the exponential function y=3(2)×