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Mathematics 8 Online
OpenStudy (anonymous):

Find the rule. (0,43) (1,32) (2,21) (3,10)

OpenStudy (cruffo):

notice that for every 1 you go up on x, y goes down by 11

OpenStudy (anonymous):

yes.

OpenStudy (cruffo):

since the change is the same for each point, the rule is a linear equation

OpenStudy (anonymous):

well, I am looking for the equation.

OpenStudy (anonymous):

like, what is y?

OpenStudy (cruffo):

\[y = mx + b\] where \(m

OpenStudy (cruffo):

where \(m\) is the slope. Hint: rise over run

OpenStudy (anonymous):

oh, okay, thanks!

OpenStudy (cruffo):

and (0,b) is the y-intercept

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