Answer:
Step-by-step explanation:
a.) if the ball is thrown from the balcony then the height would just be the y intecercept. I guess you could plug in 0 for T if you need to show the work.
-5*(0²)+30(0)+25= 25
b.)The time it takes for the ball to reach its peak would be the x value of the vertex.
-b/2a
(-30)/(2*-5)= -30/-10= 3
3 seconds
c) Because we know the ball hits its maximum height at the 3 second mark we can find out how high it went by just plugging in 3 for t
-5*3²+30*3+25= 70
70 meters
