Estimate \sqrt(80) the nearest tenth. Then locate \sqrt(80)on a number line.Estimate \sqrt(80) the nearest tenth. Then locate \sqrt(80)on a number line.
We know that 81 = 9², so √80 will be slightly less than 9. We can get a pretty good estimate by averaging 9 with 80/9. That result is 8.94, so about 8.9.
The attached graph shows that point on a number line.
