A direct variation function obtains the points (-8,-6) and (12,9). Which equation represents the function

We know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form or
With the point 1 or the point 2 find the value of the constant k
Point 1 (-8,-6)
x=-8
y=-6
substitute
y/x=k
-6/-8=k
k= 3/4

therefore
the equation is
y= 3/4x
the answer is the option
y= 3/4x