Can someone me urgent
y is directly proportional with x. write an equation that shows the relationship if y=3 and x=12.
a. y=1/4x
b. 3y=12x
c. y=4x
d. x=1/4y

A. y = ¼x  

Step-by-step explanation:

A direct proportion has the form

y = kx or k=y/x

1. Calculate k

k = 3/12 = ¼

2. Write the equation

y = ¼x

answer: evaluate the objective function at each vertex to determine which - and -values, if any, maximize or minimize the function. example: find the minimum value and maximum value of the objective function f ( x , y ) = 4 x + 5 y , subject to the following constraints