Q7. The height of certain hill (in feet) is given by h(x,y)=10(2xy−3x2 −4y2 −18x+28y+12)
Where y is the distance in north, x is the distance in east.
a. Where is the top of the hill located?
b. How high is the hill?
c. How steep is the slope (in feet per mile) at a point 1-mile north and 1- mile east, in what
direction is the slope steepest?
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