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Mathematics 19 Online
OpenStudy (anonymous):

What is the correct interpretation of the slope of the line in this graph? A. Every hour, the number of liters decreases by 0.25 liter. B. It takes 0.5 hour for the water to decrease by one liter. C. It takes 0.25 hour for the water to decrease by one liter. D. Every hour, the number of liters decreases by 0.5 liter. @TheSmartOne @Utterly_Confuzzled

TheSmartOne (thesmartone):

picture? :P

OpenStudy (anonymous):

TheSmartOne (thesmartone):

So, let's find the slope. :)

TheSmartOne (thesmartone):

\(\sf\Large Slope = \frac{\color{blue}{y_2}-\color{red}{y_1}}{\color{green}{x_2}-\color{purple}{x_1}}\) Where the two points are in the form: \(\sf\Large (\color{purple}{x_1},\color{red}{y_1})~and~(\color{green}{x_2},\color{blue}{y_2})\)

OpenStudy (utterly_confuzzled):

The slope is saying that every 2 hours, the water decreases by .5 liter Which answer choice is comparable??

OpenStudy (anonymous):

D right?

TheSmartOne (thesmartone):

nope, every TWO hours, it decreases by 0.5 liters so how much does it decrease in 1 hour? :)

OpenStudy (anonymous):

Oh I see

OpenStudy (anonymous):

It would be A

OpenStudy (utterly_confuzzled):

Right!

TheSmartOne (thesmartone):

Good job! :D

OpenStudy (anonymous):

Thank you so much for everything! Lets see what score I got...

OpenStudy (anonymous):

I GOT 100%!!! THANK YOU SO MUCH YOU ARE ALL A FREAKIN LIFE SAVOR THANKS SO MUCH!!!

TheSmartOne (thesmartone):

Anytime! :D

TheSmartOne (thesmartone):

Am I really a life saver? :o |dw:1448396248334:dw|

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