PLEASE HELP! Which types of dilation are the given scale factors?

Select Expansion or Contraction to correctly describe the type of dilation for each given scale factor.

1. 8 or -82. 14 or -143. -11, -3, 0, 7, 10

I’m not sure about that

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.

Ithink the answer is d.