Processing math: 100%

Last visit was: 07 Apr 2025, 06:53 It is currently 07 Apr 2025, 06:53
Decision Tracker
My Rewards
New comers' posts
New posts
Unanswered

Close

GRE Prep Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GRE score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Go to My Error Log Learn more
Close

Request Expert Reply

Confirm Cancel
PREVIOUS TOPIC
NEXT TOPIC

A parabola follows the function f(x)=x2+ax+b. Here a and b a

Tags :
Find Similar Topics  About  Add a Tag

Show Tags
Hide Tags

avatar
Sawant91
Manager
Manager
Joined: 22 Jul 2018
Posts: 80
Own Kudos [?]: 109 [2]
Given Kudos: 0
Send PM
A parabola follows the function f(x)=x2+ax+b. Here a and b a [#permalink] New post   Updated on: 14 Nov 2018, 07:19
2
Bookmarks
00:00

Question Stats:

96% (01:20) correct 3% (02:10) wrong based on 32 sessions

Show timer Statistics

A parabola follows the function f(x)=x^2+ax+b. Here a and b are constants
Points (0,1) and (1,1) both lie on the parabola. What is the distance between a point A with coordinates (a,b) and the origin (0,0)?

Answer in upto two decimal places.

Show: ::
√2=1.41

Originally posted by Sawant91 on 13 Nov 2018, 11:15.
Last edited by chetan2u on 14 Nov 2018, 07:19, edited 1 time in total.
edited topic name and added OA
avatar
chetan2u
Supreme Moderator
Joined: 01 Nov 2017
Posts: 371
Own Kudos [?]: 477 [1]
Given Kudos: 0
Send PM
Re: A parabola follows the function f(x)=x2+ax+b. Here a and b a [#permalink] New post   14 Nov 2018, 07:17
Expert Reply
1
Bookmarks
Sawant91 wrote:
A parabola follows the function f(x)=x^2+ax+b. Here a and b are constants
Points (0,1) and (1,1) both lie on the parabola. What is the distance between a point A with coordinates (a,b) and the origin (0,0)?

Answer in upto two decimal places.



Point (0,1) says f(x)=x^2+ax+b =>1=02+0∗a+b....b=1
Point (1,1) says f(x)=x^2+ax+b =>1=12+1∗a+b....a+b=0 but b=1, so a+1=0...a=-1

coordinates (a,b) = (-1,1)
distance from (0,0) is √(0−(−1))2+(0−1)2=√2=1.41
User avatar
bumpbot
GRE Prep Club Legend
GRE Prep Club Legend
Joined: 07 Jan 2021
Posts: 5232
Own Kudos [?]: 77 [0]
Given Kudos: 0
Send PM
Re: A parabola follows the function f(x)=x2+ax+b. Here a and b a [#permalink] New post   05 Jul 2021, 01:05
Hello from the GRE Prep Club BumpBot!

Thanks to another GRE Prep Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
Prep Club for GRE Bot
gmatclubot
Re: A parabola follows the function f(x)=x2+ax+b. Here a and b a [#permalink]
05 Jul 2021, 01:05
Moderators:
adewale223
GRE Instructor
108 posts
bronaugust
GRE Forum Moderator
37 posts
BrushMyQuant
Moderator
1131 posts
VibhuAnurag
GRE Instructor
234 posts

Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne

Main navigation

Partners

GRE Resources

www.ets.org/gre | About | Terms and Conditions and Privacy Policy | Prep Club for GRE Rules | Contact