How to work out the upper and lower bound of a number?

This can be shown as an inequality. A quick way to calculate upper and lower bands is to halve the degree of accuracy specified, then add this to the rounded value for the upper bound, and subtract it from the rounded value for the lower bound.

I hope it's helpful!

A quick way to calculate upper and lower bands is to halve the degree of accuracy specified, then add this to the rounded value for the upper bound and subtract it from the rounded value for the lower bound.

Step-by-step explanation:

the answer is (-4,-4)

hope this ! : d

good luck on your studies! : )

david edward.