Sketch a graph of the continuous even function g(x) over the closed interval of X values [-5,5] having a range of G(x) values [-1, 0]. For x>or equal to 0, roots of g(x)=0 occur at every whole number K and roots of g’(x)=0 occur at k/2. The first and second derivative of g(x) exist everywhere except at x=k. Furthermore, g”(x)>0 for every x≠k.

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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.