Which of the following is a correct equation for the line passing through the point (-2,1) and having slope m=1/2? A. y=1/2x+2 B y=-2x+1/2 C y-1=1/2(x+2) D x-2y=-4

What is the question

The answer is: y would equal 3 because if you simplify the equation then it would be y= 3x+9 and if you divide 3x and 9 by 3 it would equal 3. y= 3

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.