Yulian works at the zoo feeding the animals. He puts water in the elephant habitat at the beginning of the day. The table shows how much water, in gallons, remains at different times during the day.
What is the equation that represents Yulian’s situation? Record any fractional answers in decimal form.
(y - 29) = _____ (x - _____)
Hours 2 4 6 8
Water remaining 43 36 29 22