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You drive a car that holds 15 gallons of gasoline. Your car uses 0.03 gal per mi. Which equation best represents this information?
y = 0.03x + 15
y = 0.03x  15
y = 0.03x + 15
y = 0.03x  15
 one year ago
 one year ago
You drive a car that holds 15 gallons of gasoline. Your car uses 0.03 gal per mi. Which equation best represents this information? y = 0.03x + 15 y = 0.03x  15 y = 0.03x + 15 y = 0.03x  15
 one year ago
 one year ago

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CliffSedgeBest ResponseYou've already chosen the best response.0
Let y = gallons of gasoline Let x = number of miles y starts at 15 and then you subtract 0.03 gal. for each x.
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.0
Does the first one include the subtraction I mentioned?
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.0
@akash_809 http://openstudy.com/codeofconduct
 one year ago

akash_809Best ResponseYou've already chosen the best response.1
when x=0 then y=15 and with every minute y decreases by 0.03 , so u get y=150.03x
 one year ago

EmmaHBest ResponseYou've already chosen the best response.0
no but im using y=mx+b which means m=what could change which is .03 and then b=15 because it is your priginal so shouldnt it be y=.03x+15
 one year ago

CliffSedgeBest ResponseYou've already chosen the best response.0
@akash_809 does that matter?
 one year ago

akash_809Best ResponseYou've already chosen the best response.1
m is negative as y is decreasing
 one year ago

EmmaHBest ResponseYou've already chosen the best response.0
it cant b that because it is increasing because it increases as the cars goes
 one year ago

EmmaHBest ResponseYou've already chosen the best response.0
could you try to explain step by step please
 one year ago

akash_809Best ResponseYou've already chosen the best response.1
what is slope of a line or any function y=f(x)...it is m=dy/dx i.e rate of change of y wrt x and here rate of change of y i.e fuel is negative w.r.t x...now is it better
 one year ago

EmmaHBest ResponseYou've already chosen the best response.0
i know i must sound stupid but that doesnt make sense to me sorry
 one year ago
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