Can there be a negative change in length?

i. e. a negative ΔL ?

The radical equation 2+√2x-3 = √x+7 has a solution set [x= a0} and an extraneous root x = a1.

If eh = hg and hg=16, find the diameter of k

Select all of the quadrants that the parabola whose equation is y=√x-4 (principal square root) occupies. i ii iii iv