menu
Qammunity.org
Login
Register
My account
Edit my Profile
Private messages
My favorites
The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"?
Ask a Question
Questions
Unanswered
Tags
Ask a Question
The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"?
asked
May 23, 2019
5.6k
views
3
votes
The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"?
Mathematics
college
LobsterBaz
asked
by
LobsterBaz
7.5k
points
answer
comment
share this
share
0 Comments
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1
Answer
4
votes
For equation
y = ax² +bx +c
the line of symmetry is given by
x = -b/(2a)
Filling in the given values, we have
-2 = -(-4)/(2a)
a = 4/(2(-2)) = -1
The value of "a" is -1.
Stonecrusher
answered
May 28, 2019
by
Stonecrusher
9.0k
points
ask related question
comment
share this
0 Comments
Please
log in
or
register
to add a comment.
← Prev Question
Next Question →
Related questions
asked
Nov 21, 2024
213k
views
7. The parabola shown has the form y = ax2 + bx + c. a. What is the axis of symmetry? x= b. Look at the width of the parabola to find a. c. Use the formula x = to find b. 2a d. What is the equation of
Pandaadb
asked
Nov 21, 2024
by
Pandaadb
7.4k
points
Mathematics
high-school
1
answer
0
votes
213k
views
asked
Sep 22, 2024
144k
views
7. The parabola shown has the form y = ax2 + bx + c. a. What is the axis of symmetry? x= b. Look at the width of the parabola to find a. c. Use the formula x = to find b. 2a d. What is the equation of
Louis Coulet
asked
Sep 22, 2024
by
Louis Coulet
8.5k
points
Mathematics
high-school
2
answers
3
votes
144k
views
asked
Sep 5, 2020
219k
views
The line of symmetry of the parabola whose equation is y = ax2 - 4x + 3 is x = -2. What is the value of "a"? -2 -1 -1/2
Nello
asked
Sep 5, 2020
by
Nello
8.2k
points
Mathematics
middle-school
2
answers
1
vote
219k
views
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.
9.4m
questions
12.2m
answers
Categories
All categories
Mathematics
(3.7m)
History
(955k)
English
(903k)
Biology
(716k)
Chemistry
(440k)
Physics
(405k)
Social Studies
(564k)
Advanced Placement
(27.5k)
SAT
(19.1k)
Geography
(146k)
Health
(283k)
Arts
(107k)
Business
(468k)
Computers & Tech
(195k)
French
(33.9k)
German
(4.9k)
Spanish
(174k)
Medicine
(125k)
Law
(53.4k)
Engineering
(74.2k)
Other Questions
How do you can you solve this problem 37 + y = 87; y =
What is .725 as a fraction
How do you estimate of 4 5/8 X 1/3
Twitter
WhatsApp
Facebook
Reddit
LinkedIn
Email
Link Copied!
Copy
Search Qammunity.org