Question

What is the value on the number line for the blue dot

Answer 1

The value on the number line for the blue dot= +4

2 marks on the line = 4 units

so, 1 mark = 2units

Answer 2

I believe 4, but I might be wrong.

Explanation:

If you look, it's going down -4 every time. So that means if you're going up, it's going +4 after you skip a space. So, skip, then 0, then skip, and that's 4.