Hello I need some help with these 8 multiple choice questions. If you could please help me out that would be great!

Select the most appropriate answer for each question. 1. The derivative of a function fin terms of a limit is defined by which of the following? lim f(h) -f(x) a) h-to h lim- f(x+h)-f(x) b) h c) lim f(x)-f(a) x-a X lim f(x+h)-f(x) d) h 2. The derivative can be used to find the: a) point of intersection. b) common factors. c) instantaneous rate of change. d) Both b and c are correct. 3. A notation for derivative is: a ) fa ( x ) dy b) dx c ) f ( x ) d) lim 4. What is the derivative of h(x) = 42x ? a) 0 b) 42 c) x d) 42x 5. What is f(x) of the function, f(x) = 1x3 - 4x2 - 2x + 5 ? a) x3 - x2 + 2 b) x2 - x+1 c) x2 - x - 2 )5x3 - 2x2 + 2x 6. The function f(x) = Vx can be rewritten as: a) f(x) = x b ) f ( x ) = x 3 c) f ( x) = x 6 d) f ( x) = x a 7. Which rule would you use to differentiate f(x) = cos(3x)? a) Sum rule b) Difference rule c) Product rule d) Chain rule 8. What is the derivative of y = -cos(x)? a) -sin(x) b) -cos(x) c) sin(x) d) cos(x)