H.W (1) 1. Use the definition f (2) = lim +) - 7(e to find the first derivative for the function f(2) = 2 -1. 2. Write the equation of the tangent line to the curve y= -r+2 at the point P(1, 2). 3. Use the definition to find a formula for the slope of the tangent line to graph of S(x) = 5at a general point ra- 4. If y V-2, find by definition. 5. If f(z) = 5z2 - 3r find f'(r), then caleulate the slope of the tangent line at z=4. 6. If f(z) = 3r -z find f(z), then find the equation of tangent line at z= 5.

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