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katen-ka-za [31]
2 years ago
14

Using your own words, explain direct and inverse proportionality. (Be sure to use complete sentences.)

Mathematics
2 answers:
Lerok [7]2 years ago
7 0
The number of pencils is directly proportional to the cost. ... Two values x and y are inversely proportional to each other when their product xy is a constant (always remains the same). This means that whenx increases y will decrease, and vice versa, by an amount such that xyremains the same.
ANEK [815]2 years ago
7 0

Answer:

if y is directly proportional to x with constant of proportionality k

y=kx

if y is inversely proportional to x with constant proportionality k

y=k/x

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