Find the mean of 9, 1, 3, 9, 3 graphically

Find parametric equations for the line tangent to the curve of intersection of the surfaces at the given point. surfaces: xsquared2plus+2yplus+2zequals=1212 yequals=33 point: left parenthesis 1 comma 3 comma five halves right parenthesis

Can someone me with my math problem pls my teacher is on my back about this

Ineed here’s a picture of the question