+0  
 
+1
58
8
avatar+1757 

Please help asap ty!

RainbowPanda  Aug 21, 2018
 #1
avatar+1757 
0

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

RainbowPanda  Aug 21, 2018
 #2
avatar+199 
0

Graphing it helps a lot.

ColdplayMX  Aug 21, 2018
 #3
avatar+1757 
+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
avatar+88830 
+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

 

 

cool cool cool

CPhill  Aug 21, 2018
edited by CPhill  Aug 21, 2018
 #5
avatar+1757 
+1

That is exactly what I got tyvm! Proof: 

Ignore the other ones lol

RainbowPanda  Aug 21, 2018
 #6
avatar+88830 
+2

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

 

LOL!!!

 

 

cool cool cool

CPhill  Aug 21, 2018
 #7
avatar+1757 
+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
avatar+88830 
+1

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

 

cool cool cool

CPhill  Aug 21, 2018

38 Online Users

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.