+0

+1
185
8
+2448

Aug 21, 2018

#1
+2448
0

Just need to know how to get the [_,_] slope (x intercepts)

Aug 21, 2018
#2
+196
0

Graphing it helps a lot.

Aug 21, 2018
#3
+2448
+1

Ehh I guess. I'm thinking it would be this for the max. height: -120/2(-16) which equals 3.75 so it would be [0,3.75] and then I got the rest :P i'll show my work if anyone wants me to.

RainbowPanda  Aug 21, 2018
#4
+100529
+2

h(t)  =  -16t^2  + 120t   +  6

The time  to reach the max height   =    -120  /[ 2 * -16 ]  = -120 / -32  = 3.75 sec

And....to find the max height, plug this value back into the function  =

-16(3.75)^2 + 120 (3.75)  +   6  =   231 ft

Note that the  change in height is [231 - 6 ]  = 225 ft

So...the average rate of change  in height  from intial height to max height   =   [231- 6] / 3.75  =

225 / 3.75  = 60 ft / sec

Aug 21, 2018
edited by CPhill  Aug 21, 2018
#5
+2448
+1

That is exactly what I got tyvm! Proof:

Ignore the other ones lol

RainbowPanda  Aug 21, 2018
#6
+100529
+2

Well....two great minds couldn't possibly be incorrect, could they   ???

LOL!!!

CPhill  Aug 21, 2018
#7
+2448
+1

Well my mind isn't very great haha, but you're never incorrect, so this must be the correct answer. ^-^

RainbowPanda  Aug 21, 2018
#8
+100529
+1

Oh....I'm  often incorrect....but....I try  NOT to be  !!!

CPhill  Aug 21, 2018