Forming equations using proportion by Boxed Rockets

Form Equations to Represent the Following

Question 1:

y is directly proportional to x, when x = 4, y = 56

y = 14 x

Question 2:

y is inversely proportional to x, when x = 1, y = 6

y = \frac{6}{x}

Question 3:

y is directly proportional to x, when x = 6, y = 30

y = 5 x

Question 4:

y is inversely proportional to x, when x = 12, y = 5

y = \frac{60}{x}