Ask your own question, for FREE!
Mathematics 50 Online
silvernight269:

in 1972, federal vehicle emission standards allowed 3.4 hydrocarbons released per mile driven. By 2007 the standards allowed only 0.8 hydrocarbons per mile driven. What was the rate of change from 1972 to 2007

silvernight269:

@Vocaloid

silvernight269:

@dude @umm @Ultrilliam

umm:

About -0.07/year

silvernight269:

but how would i get that answer

silvernight269:

@Vocaloid

umm:

make 1972 your starting point so y=0 and then the hydro your x so x=3.4 then you have (3.4,0) then 2007 is 35 years after 1972 so y=35 and x=0.8 (0.8,35) then use then point slope formula

silvernight269:

ok......

Ultrilliam:

@Mehek @dude

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!