Ask
your own question, for FREE!

Mathematics
42 Online

OpenStudy (anonymous):

-x^2-3x+9

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

whats the prob here helpme? do you wanna solve for x?

OpenStudy (anonymous):

find the vertex

OpenStudy (anonymous):

ah ok, did you try first graphing this? you can see it if you graph it....say y=-x^2-3x+9

OpenStudy (amistre64):

id give it a shot, but apparently my negatives signs are off today ;)

OpenStudy (anonymous):

http://www.webgraphing.com/plotting_basic.jsp?gclid=CI2C_LPqhKgCFcVOHAodqhzCrw#

Still Need Help?

Join the QuestionCove community and study together with friends!

OpenStudy (anonymous):

idk what i keep doing wrong

OpenStudy (amistre64):

-x^2-3x+9 the mirror image over the x axis is: x^2+3x -9; so whatever the y value for this is at the vertex, change its sign

OpenStudy (amistre64):

(-3/2,-(y)) 9 9(2) 9(4) 9-18 -36 -45 --- - ----- - ---- = ---------- = ---- ; opposite that maybe 4 2(2) 1(4) 4 4

OpenStudy (anonymous):

A plot is attached.

OpenStudy (amistre64):

(-3/2 , 45,4) ??

Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!

Join our real-time social learning platform and learn together with your friends!

Latest Questions

WalmartBag:
I friggin hate getting told I look 17-18 like mf, I'm turning 16 in december, jus

3 minutes ago
21 Replies
1 Medal

Alexis1415:
What are some pills I could take for heart and liver pains?

2 hours ago
0 Replies
0 Medals

XShawtyX:
Omga Help, So tmr I have a test for Math The Function Transformation, and I literally have no clue how to do any of that.

2 hours ago
7 Replies
3 Medals

Bones:
This is to my ex best friend I am sorry for what I did I know I missed up I get t

6 hours ago
2 Replies
3 Medals

Alexis1415:
A little Italian thing I created ud83eudd26u2640ufe0f non importa quello che facc

23 minutes ago
19 Replies
4 Medals