(4,-5), (6, r), m = 9 what is r
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In the graph, the constant of proportionality is 40
<h3>Calculating the constant of proportionality</h3>From the question, we are to determine the constant of proportionality
The constant of proportionality =
From the graph, a point on the line is (1, 40)
That is,
When x = 1 and y = 40
Thus,
The constant of proportionality =
Constant of proportionality = 40
Hence, the constant of proportionality is 40
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Direct variation:
y=144 when x=12.
y=? when x=17.
y=204 when x=17.
y=144 when x=12.
y=? when x=17.
y=204 when x=17.