Please help me with this! Thank you!

Find the gradient of f(x, y,z)equals=left parenthesis x squared plus y squared plus z squared right parenthesis superscript negative 1 divided by 2 baseline plus ln left parenthesis x right parenthesis x2+y2+z2−1/2+ln(xyz) at the point left parenthesis negative 2 comma 1 comma negative 2 right parenthesis(−2,1,−2).

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Ineed if you could explain and give me the answer you! this needs done