Which answer shows the equation y +4=2(x-1)
-2x+y=-6
y=2x-6
-2x+y=-5
y=2x-5

< i think this is the answer unless i did my math wrong

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.