calc help i dont understand

1. [2/4 Points] DETAILS PREVIOUS ANSWERS watsraph below shows water level readings t Answer the'questions below. om a stream gauge as a function of time. Within the domain 0 s t s 7, the rate of change appears to be zero at which times? Select all that apply. ot = 0 weeks at = 1 weeks ot = 2 weeks o t = 3 weeks a t = 4 weeks o t = 5 weeks at = 6 weeks at = 7 weeks o There are other times in the domain with zero rate of change. o The rate of change is never zero in the domain. Which of the following is true? w' (3 ) > w' ( 7 ) w'(3) = w'(7) . w'(3) w'(5) . w'(0) V'(7) o V'(3) V'(5) From the choices below select the best graph of V'(t). WARNING! This is worth three times as many points as a normal question and you get only one try. Think. Sketch your own graph of V'(t) first. Don't guess. AALMA3. [-/4 Points] DETAILS e function below shows the temperature of an object that is slowly thawing from frozen to room temperature. temper Answer the questions below. -10 -IS Within the domain 0 s t s 7, the rate of change appears to be zero at which times? Select all that apply. ot = 0 hr ot = 1 hr ot = 2 hr ot = 3 hr ot = 4 hr ot = 5 hr ot = 6 hr at = 7 hr o There are other times in the domain with zero rate of change. o The rate of change is never zero in the domain. Which of the following is true? . T'(0) = T'(1) . T'(0) T'(1) Which of the following is true? . T'(1) = T'(5) . T'(1) T'(5) From the choices below select the best graph of T'(t). WARNING! This is worth three times as many points as a normal question and you get only one try. Think. Sketch your own graph of T'(t) first. Don't guess. dr/dt drydt d'T/dt dT/dt 3 + 2 34. [-/3 Points] DETAILS The graph below shows the height of an object bouncing on the end of an elastic band. , h, is in cm and time, t, is in seconds. 10 35 30 25 20 15 10 Sketch a graph ofh'(t). As usual, you should look for times when the velocity is zero. Then select the best match from the choices below. WARNING! This is worth three times as many points as a normal question and you get only one try. dh/dt dh/dt 2 dh/dt dh/dt5. [-/2 Points] DETAILS below shows the electric potential in a circuit as a function of time. The graph V, is in volts and time, t, is in seconds. Use this graph and/or your graph of V'(t) from earlier in this assignment to answer the questions below. 20 15' 10 -5 -10- - 15 -20- Within the domain 0