Lucas went on a 4-day road trip, driving the same distance each day. He plots this information with x as the number of days he has driven, and y as the number of miles driven. One of the coordinates he graphs was (1,400)

When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. if you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.

Okay i will add you