SOLUTION: Let X be the driving time (in hours) since a person has fueled up his car, and let Y be the number of gallons of gas in the car's gas tank. Assume that the equation y=-3X+18 descri

Question 335139: Let X be the driving time (in hours) since a person has fueled up his car, and let Y be the number of gallons of gas in the car's gas tank. Assume that the equation y=-3X+18 describes the relationship between X and Y.
Question: What does the variable y represent? what is the unit of y?
Write the equation that describes the relation between the variables.
Find the X-intercept and the Y-intercept. Show the algebra.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Let X be the driving time (in hours) since a person has fueled up his car, and let Y be the number of gallons of gas in the car's gas tank.
----------------------------------
Assume that the equation y=-3X+18 describes the relationship between X and Y.
----------------------------------
Question: What does the variable y represent? # of gallons of gas in the tank.
---------
what is the unit of y? gallons
---------
Write the equation that describes the relation between the variables.
y = -3x+18
-----------------
Find the X-intercept and the Y-intercept. Show the algebra.
x-intercept = ?
Let y = 0 ; then x = 6
---
y-intercept = ?
Let x = 0 ; then y = 18
===========================
Cheers,
Stan H.
==========
RELATED QUESTIONS
Ali is driving on the highway. He begins the trip with 12 gallons of gas in his car. The... (answered by mananth)

Juan is driving on the highway. He begins the trip with 18 gallons of gas in his car. (answered by josmiceli)

A car traveling at 50 miles per hour uses 2 gallons of fuel. The fuel tank has a... (answered by stanbon)

Miguel is driving on the highway. He begins the trip with 12 gallons of gas in his car. (answered by stanbon)

Jessica is driving on the highway. She begins the trip with 14 gallons of gas in her car. (answered by ankor@dixie-net.com)

Christy goes on a road trip; her car gets 26 miles per gallon (mpg) and gas costs $3.12... (answered by josgarithmetic)

Debra is driving on the highway. She begins the trip with 14 gallons of gas in her car.... (answered by ewatrrr)

Susan is driving on the highway. She begins the trip with 18 gallons of gas in her... (answered by josgarithmetic)

Alonzo is driving on the highway. He begins the trip with gallons of gas in his car. The... (answered by stanbon)