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vekshin1
2 years ago
12

WILL GIVE BRAINLIEST, THANKS AND 5 STARS! PLEASE HELP! LOTS OF POINTS

Mathematics
1 answer:
irina [24]2 years ago
8 0

First graph it

#1

Maximum height is the y coordinate of vertex

  • (2,144)

Max height

  • 144m

#2

Time is the x coordinate of vertex

  • 2s

#3

  • y is 0

\\ \rm\Rrightarrow -16t^2+64t+80=0

x intercepts are the solutions

  • (-1,0)U(5,0)

Take it positive

  • t=5s

#4

put in function

  • y=-16(1)+64+80=-16+144=128ft

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