waecmaths question:
If $x\propto (45+\tfrac{1}{2}y)$ which of the following is true
Option A:
x varies directly as y
Option B:
x varies inversely as y
Option C:
x is partly constant and partly varies as y
Option D:
x varies jointly as 45 and directly as y
waecmaths solution:
Option A
maths year:
maths topics: