Brinda P. answered 07/15/20
UC Davis Grad for English and Science Tutoring
Hi Izaeya! This questions requires some simple plug and chug but before can solve it, I want you to understand components of the Quadratic formula. A quadratic formula creates a parabolic shape, just like your baseball when you play catch with a friend. The quadratic formula shows you a relationship between time and height.
You can also write a simple quadratic formula like this:
h(t)= at^2+bt+c (there is a relationship between height (h) and time (t)
For your question, you are being asked to find the height after 3.5 seconds (this is your t)
You simply plug and chug!
h(3.5 seconds) = -16(3.5)^2 + 64(3.5) +3 = 31
So, the height of the baseball after 3.5 seconds is 31 _____(You haven't specified the units so that's why I left the units blank).
I hope this helps. Have a great day!