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8. a) Consider f (x) = 5+2x and use, mtangent = lim f(xth )-f(x)+ x - 3 to h - 0 h determine the simplified expression in terms of x for the slope of any tangent to f (x) and state the slope at x = -1. [7 marks] Determine the equation of the tangent to f (x) at x = -1. Write the Final answer in Standard Form Ax + By + C = 0, A 2 0 and no fractions or decimals. [3 marks]