Equation of direct variation

K

KV

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A student earns $0.65 for mistake she finds in a text. Sketch the equation of direct variation.
I do not understand what the question is asking.
 
Earned = $0.65M, for all mistakes M

Earned varies directly as M, where $0.65 is your constant.

Graph. y = $0.65M
 
I am confused. You are saying the equation is:
E=.65M ?
That does not make sense to me.
 
KV said:
I am confused. You are saying the equation is:
E=.65M ?
That does not make sense to me.
Click to expand...
Which part does not make sense? You have an input variable, M (instead of "x"), and an output variable, E (instead of "y"), and a direct-variation relation (so you know you have an equation of the form "y = kx").

Are you stuck on how to obtain 0.65 as the value for the variation constant...?

Please be specific. Thank you.

Eliz.
 
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