Question

What is the constant of proportionality for the graph?

Answer 1

@Michele_Laino

Answer 2

hint:
the line passes at point \((10,5)\), namley \(x=10,\;y=5\). Now the requested constant \(c\) of proportionality, is given by the subsequent ratio:
\[\huge c = \frac{y}{x} = \frac{5}{{10}} = ...?\]

Answer 3

0.5

Answer 4

that's right! We have \(c=0.5\) or \(c=1/2\)