PLZ help

1. Determine f'(a) for the following functions using the definition f'(a) = lim f(I) - f(a) T - a (a) f(x) = 41, a =23 (c) f(x) = 5x2, a =3 (b) f(z) = VI, a=4 (d) f(x) = 1 0 =5 2. Compute the derivatives in problem (1) using the alternate definition f'(a) = lim f(ath) - f(a) h > h3. Determine the equation of the line tangent to the mm 3; : 1/5 at the point (41 2]