- #1
Run Haridan
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Straight line! help!
the straight line 3y-x-k=0 is the normal to the curve y=4x3+12x2+9x-1 at point A. The curve has two turning points.
a)find the coordinates of A
b)find the coordinates of the turning points of the curve. then, determine whether the turning points are a maximum or a minimum point.
so can we use simultaneous equation on this question?
or maybe replace y in the equation
please help!
Homework Statement
the straight line 3y-x-k=0 is the normal to the curve y=4x3+12x2+9x-1 at point A. The curve has two turning points.
a)find the coordinates of A
b)find the coordinates of the turning points of the curve. then, determine whether the turning points are a maximum or a minimum point.
Homework Equations
so can we use simultaneous equation on this question?
or maybe replace y in the equation
The Attempt at a Solution
please help!