Plot the approximate value of −10−−√ on the number line.

We are required to plot the approximate value of on the number line.

As, we know,

Value of = -3.16 ≈ -3.2

Thus, the approximate value of is -3.2 which will lie on the left side of the number 0 and between the numbers -3 and -4.

Thus, the approximate value plotted on the number line is shown below.

it should be a.

hope it