Question 1000599: a driver wants to gauge the fuel efficiency of her vehicle at speeds of 30mph and above. she notices 6that traveling at an average speed of 30mph results in rating 35mpg, where as at an average speed of 35mph, her car sates 20mpg. find the equation to model the gas mileage(y) for an average speed of x mph
Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39617)   (Show Source):
You can put this solution on YOUR website! What kind of model? Only two ordered pair are described. Only enough information for a linear model.
If y is for fuel efficiency and x is for speed, then the points for y=mx+b are (30,30) and (35,20). What is the slope-intercept equation for the line containing these two points? At least a couple ways to do this.
(Here, point-slope form equation is being used...)
Continue on, if you want this in slope-intercept form.
Answer by MathTherapy(10552)  (Show Source):
You can put this solution on YOUR website!
a driver wants to gauge the fuel efficiency of her vehicle at speeds of 30mph and above. she notices 6that traveling at an average speed of 30mph results in rating 35mpg, where as at an average speed of 35mph, her car sates 20mpg. find the equation to model the gas mileage(y) for an average speed of x mph
Equation: 
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