A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 5 years ago
vertex and roots of f(t)16t^2+70t+4
anonymous
 5 years ago
vertex and roots of f(t)16t^2+70t+4

This Question is Closed

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0f(t)=16^2+70t+4 sorry

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0f'(t) should be 32t + 70 to find vertex set equal to 0

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ahhh sorry it's 16t^2+70+4 we're supposed to find b/2a to find t, then plug that in the find vertex, and then the roots i came up with were 35+orsqrt1097 divided by 16

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0sorry about that, vertex looks good check the sqare root part in the quadratic formula

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0i get 35 + sqrt(1289) divided by 16

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0b^2=35*35=1225 4ac=4(8)(4)=128 1225128=1097? I think thats right, its asking for xintercepts to graph it. how do i graph this?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0redo the problem, this time looking closely at the signs.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.04 got it. thank you!!!!!!!

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0ooooh yeah. haha. thank you so much. but that means there are no xintercepts right?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0ok so now x = (35+ sqrt(1289))/16 those two x values are your xintercepts graph them as 2 points. (x1,0) and (x2,0)

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0get a graphing calculator to check your answers

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0but you can't graph that what we got for x

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0do you mean on a graphing calculator or by hand

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0so like the question is about baseball and how long it takes for the ball to hit the ground and after how many seconds. when i graph it, (0,4) is the yint, (35/16, 1289/16) is the vertex (or the highest point the ball gets to) and then to figure out when the ball lands on the ground would be the xint

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0the xint would be one of the answers derived from the quadratic formula.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0even if its like never ending full of decimals? would i just round it up?

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0yes round to two or three decimal places depending on what your teacher prefers.

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0oh ok. i think i got it this time then. thanks for all your help! =]

dumbcow
 5 years ago
Best ResponseYou've already chosen the best response.0you're welcome. next time you ask for help it would be beneficial to state the entire problem not just the part you're stuck on. it gives me context. Thanks!
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.