5. [-/1 Points] DETAILS SCALCET9 3.1.019.MI. Differentiate the function. f ( x ) = x(x+8) f ( x ) = Submit Answer 6. [-/1 Points] DETAILS SCALCET9 3.1.024. Differentiate the function. 3vx + 9x V = 2x2 V ' Submit Answer 7. [-/1 Points] DETAILS SCALCET9 3.1.027. Differentiate the function. j(x) = x2.2 + 2.2 j' ( x ) = Submit Answer 8. [-/1 Points] DETAILS SCALCET9 3.1.032. Differentiate the function. f(v) = Vv - 3ve V f (v ) =9. [-/2 Points] DETAILS SCALCET9 3.1.035. Consider the following. y = tx- + t' x Find oy dx dy dx dy dt dy dt Submit Answer 10. [-/4 Points] DETAILS SCALCET9 3.1.045. Consider the following. f(x) = x4 - 6x3 + 9x2 Find f'(x). f ( x ) = Compare the graphs of f and f' and use them to explain why your answer is reasonable. f'(x) = 0 when f -Select- v f(x) is positive when f ---Select- f'(x) is negative when f ---Select- Submit Answer 11. [-/2 Points] DETAILS SCALCET9 3.1.050. Find the first and second derivative of the function. G() = VA+ VT G'(r) = G"(r) =12. [-/2 Points] DETAILS SCALCET9 3.1.051. Find the first and second derivatives of the function. Check to see that your answers are reasonable by comparing the graphs of f, f', and f". f(x) = 4x - 5x9/10 f' ( x) = f" (x) = Submit