The tangent line to the graph of y = f(z) at the point (4,33) has the equation y = 7z+ 5. (a) Find f'(4). f'(4) = UN (b) Find the instantaneous rate of change of y with respect to z at z = 4.

Q: 2+ 3x)(5 –

A: f(x)=(2+3x)(5-2x)ddx(u.v)=u.ddx(v)+v.ddx(u)ddx(x)=1ddx(5)=0

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