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
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Which of the following could be the equation of the graph in
[#permalink]
11 Dec 2017, 10:25
11 Dec 2017, 10:25
1
Expert Reply
5
Bookmarks
00:00
Question Stats:
100% (01:10) correct
0% (00:00) wrong based on 35 sessions
Hide Show timer Statistics
Attachment:
xy.jpg [ 18.33 KiB | Viewed 12443 times ]
Which of the following could be the equation of the graph in the xy-plane shown above?
A. \(y = x^2 + x - 60\)
B. \(y = x^2 + x - 20\)
C. \(y = x^2 + 3x - 60\)
D. \(y = 3x^2 + x - 60\)
E. \(y = 3x^2 + 3x - 60\)
Re: Which of the following could be the equation of the graph in
[#permalink]
11 Dec 2017, 17:55
11 Dec 2017, 17:55
2
A. y = x^2 + x - 60
B. y = x^2 + x - 20
C. y = x^2 + 3x - 60
D. y = 3x^2 + x - 60
E. y = 3x^2 + 3x - 60
The parabola is in form of a a^2 + bx +c
The x-intercepts are the solutions to the equation
x1=−b−Squroot(b^2−4ac)/2a
The y-intercept is c, as y intercept means the value of y when x=0. So c = -60?
B. y = x^2 + x - 20
C. y = x^2 + 3x - 60
D. y = 3x^2 + x - 60
E. y = 3x^2 + 3x - 60
The parabola is in form of a a^2 + bx +c
The x-intercepts are the solutions to the equation
x1=−b−Squroot(b^2−4ac)/2a
The y-intercept is c, as y intercept means the value of y when x=0. So c = -60?
Re: Which of the following could be the equation of the graph in
[#permalink]
12 Dec 2017, 11:46
12 Dec 2017, 11:46
Expert Reply
Added the OA.
