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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).

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.