Question 1 (1 point) Saved Find the derivative of the function fix] 2 :t'.2 1. 1 1 1 :r A. B. C. D. E. Ester? 1 infra1 ZerEl 1121 1121 |:I_I::l A ("'3' B u::"'::u c 3. o |:I_I::l E Question 2 (1 point) Saved The graph of r] penises through the point (1.4). The slope of the line tangent to the graph at the point {.3 f{;r)] is E;r 3. Find f'l). {21.1 3 {h} 2 {(r'] 1 {d1 {e'} t] 2 :3:th A |:I_I::l B ("'3' c Question 3 (1 point) 0) [...Question 12 (1 point) The acceleration function is found by differentiating the displacement function 6/ Question 13 (1 point) The position function ofan object is given by 5'0) - 4.9:} + 1963+ 2, where time, i1 is in seconds and distance, 5, is in metres. When is the object momentarily at rest? A atls C ot3s B alls D atUs |:|A OB |:|C Question 14 (1 point) _ _ l _ Determme the equation of the tangent to it) - E + x at the paint 1 1.2). \fQuestion 16 (1 point) Saved By the definition of a derivative, the derivative of f(x) = ~x is A) lim Nx + h h-0 h B) lim Nx + h - x h-0 C) lim [x + Vh]- Nx h-0 D) lim Vx + h h-0 h E) lim [x + h - x] h-0 A OB Oc OD OE Question 17 (2 points) Saved A company sells an average of 50 skateboards per month at a price of $120 each. For each $5 decrease in price, two more skateboards are sold. Determine the marginal revenue when 25 skateboards are sold. y=x*(120-(x-50/2)*5) = Y=120x- A/Question 18 (1 point) Saved . _ . x22x Evaluatcthclimlt' 11m . KOO I A m C U B 2 D +to O A (E) B O C D | | Question 19 (1 point) Saved What derivative rule would be the "easiest" to apply to the function below so that the final answer is simplified? y=~Ju +21. C) Constant Rule (_) Power Rule (E) Product Rule (D Chain Rule (:31 Quotient Rule Question 20 (2 points) The demand function for a product is p(x) = mx +k, where x is the number of units of the product sold and p is the price, in dollars. The cost function is C(x) = ax + bx + c. Determine the marginal profit function. Start with the text: P'(x)=