On a coordinate plane, MN intersects JK at point P. Point P is the midpoint of JK. Which statement must be true?
A. JK = MN
B. JP = PK
C. JP =MP
D. MP = PN

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.