Question

y is inversely proportional to (x=3)
(a) write down an expression for in term of x and a constant k.
(b) it is given that y=6 when x=5.
find y when x=11

Answer 1

Answer:

Step-by-step explanation:

a) y α   1  

          x - 3

y =   k    

      x - 3

y (x - 3) = k

b) when x = 5, y = 6

y (x - 3) = k

6 (5 - 3) = k

6 (2) = k

12 = k

when x = 11

y (x - 3) = k

y (11 - 3) = 12

8y = 12

y = 12

       8

y = 3

      2