Question

Y is directly proportional to x.

When y = 30, x = 6
a) Work out an equation connecting y and x.
b) Work out the value of y when x = 12.

Answer 1

Answer: Our required equation would be

Explanation:

Since we have given that

y=30, when x = 6.

As there is direct proportion between x and y.

so, it becomes,

So, the equation connecting y and x would be

When we put the value of k, we get that

Hence, our required equation would be y=5x