
Bam K. answered 12/20/14
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y = slope x + independent term ; we know the slope (-5/3) ; here the independent term is 9 ; therefore
y = -5/3 x + 9
Another way of getting the function satisfying the given conditions is as follows :
y - 9 = -5/3 ( x - 0 ) -----> y = -5/3 x + 9
It boils down to the various expressions of a linear function subject to the given conditions or data or available information. Of course, you shall know the meaning of the given data or information in order to proceed. Master the concepts prior to solving the problem submitted to you.