In a lighting storm, the number of seconds between the flash and the bang varies directly with the number of miles you are from the lightening. It takes 15 seconds for the thunder sound to reach you from lightening that is 3 miles away. If the thunder sound reaches you in 1 second, how far away is the lightening?
The value of y is directly proportional to the value of x. If
The value of y is directly proportional to the value of x. If y = 36 when x = -3, then what is the value of y when x = 4?