What is the domain (input) of the function shown in the mapping A.{x l x=-10,-6,0,1)
B.{y l y=-5,-2,0,2,7
C.{y l y=-10,-6,0,1
D.{x l y=-5,-2,0,2,7

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.

Sry i’m so bad at math! wish i could answer #imdumb