01234−2246xyf(x)=x3−6x2+9x 01234−2246xyf(x)f′=0f′=0f′>0f′<0f′>0 −1012345−10−55xyf(x)=x2−4x+1gradient 2(3,−2) 01234−2246xyf(x)=x3−6x2+9x(1,4)(3,0) 012345678910510152025side xareaA=x(10−x)maximum Mathematics 2 · Differentiation
Lesson
Use the gradient to read the whole curve
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