C. (x+4) and (x-8) this is because when the sign is positive, then it goes to the left and when the sign is negative you go to the right. On the graph the x-intercepts are at -4 and 8 so you can switch the signs on them to figure out the factors
To determine the time it takes for the penny to reach the ground, we use the relation of height and time given above. We do as follows: <span> 0 =−4.9t^2+(0)t+150 t = sqrt( 150/4.9) t = 5.53 s
Hope this answers the question. Have a nice day.</span>
