Answer:
a = 0.2
Step-by-step explanation:
Let y = ax be a linear equation, where x is the input variable and y is the output variable, then "a" is the proportionality constant between x and y.
To find the proportionality constant of the given equation, we must take it to the form y = ax.
We have:
2x = 10y
We divide both sides of the equation by 10.
0.2x = y
y = 0.2x.
Then the constant of proportionality is:
a = 0.2
