1. Find the minimum and maximum values of: f(x)=x 4_% ontheinterval 455153. 2. A particle moves in a straight line so that its position .r in metres after I seconds is given by the . 1 equation 3(r} = 5:3 4t1 +15t+3, t E l}- a. Find the particle's velocity and acceleration. h. Describe the motion of the particle at 4 seconds. State the particle's position, direction of movement and whether the particle is speeding up or slowing down. c. Determine the time[s) when the object is moving in the negative direction. d. 1|When is the particle speeding up? Justify your answer mathematically. e. Determine the distance travelled by the particle in the rst s seconds