Let the temperature / in degrees at the point X,y,z), with distances measured in cm, be T(X,y,z)=5x – 4y+3z Let 9 be the real number such that the rate at which the change in temperature at (1,0,3) per unit change in the distance travelled in the direction of the vector (1,q,1) is 4 /cm. Find. (Note that the "direction" of a vector is always a unit vector "pointing the same way.") none of the other answers -7/40 17/56 1/12 1/2

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