Question

This table shows the relationship y = kx.

What is the constant of proportionality, k?
2
2
3
5
8
у
5
7.5
12.5
20
1.5
3
3
5
2.5

Answer 1

k = 2.5

Explanation:

We know that,

y = kx

=> y/x = k

Let us take the first value of x and y.

Si, 5/2 = k

=> 2.5 = k

Note: We can take any of the given values of x and y from the table.