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For each equation, determine whether x and y are directly proportional (that is, if the equation shows direct variation).
If so, then find the constant of proportionality (the constant of variation).

(a) 5/4 x = y

O Proportional
Constant of proportionality: k =
O Not proportional

(b) y = -x

O Proportional
Constant of proportionality: k =
O Not proportional

For each equation determine whether x and y are directly proportional that is if the equation shows direct variation If so then find the constant of proportiona class=

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