Ingrid hit a golf ball. The height of the ball (in meters above the ground) t seconds after being hit is modeled by h(t)=-5t^2+30t In

Question

Ingrid hit a golf ball. The height of the ball (in meters above the ground) t seconds after being hit is modeled by h(t)=-5t^2+30t
Ingrid wants to know when the ball reached it’s highest point.
1/ rewrite the function in a different form(vertex or factored) where the answer appears as a number in the equation
h(t)=
2/ how many seconds after being hit does the ball reach its highest point?

in progress 0
Thành Đạt 4 years 2021-07-23T19:54:52+00:00 2 Answers 150 views 0

Answers ( )

  1. Eirian
    0
    2021-07-23T19:56:12+00:00
    Reply

    Answer:

    −5(t−3)^2+45

    Ball reaches after 3 seconds

    Step-by-step explanation:

    took the dumb quiz

  2. minhkhue
    0
    2021-07-23T19:56:40+00:00
    Reply

    Answer:

    1) h(t) = -5(t-3)^2

    2) The ball reaches the highest point at 3 seconds.

    Step-by-step explanation:

    OK. So for this question, I recommend to rewite using vertex form since the answer is given in a more concise manner than using factored.  

    First Step:

    h(t) = -5t^2+30t

    = -5(t^2-6t)

    = -5(t^2-6t+9)+45

    = -5(t-3)^2+45

    Second Step:

    The vertex form reveals the vertex to be at (3, 45).

    Therefore, the ball reaches the highest point at 3 seconds.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )