Explanation
Step 1
relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other
[tex]y=kx[/tex]
where y is the dependent variable, x is the independent variable and k is the constant
so, looking at the options we have to find a equation that has the same form:
we have
[tex]y=0.5x[/tex]
so, the option A is the correct one
where
the constant is 0.5
I hope this helps you
