Which step is not necessary when solving this system of equations by graphing? (3x-y-4
x+y=-4
O Identify the point of intersection.
O Choose a method to graph the equations
Determine the shaded area for each line
Write the solution as an ordered pair.

Don’t know sorry 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.