1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Charra [1.4K]
3 years ago
5

What are the coordinates of the vertex for f(x) = 2x2 + 4x + 9?

Mathematics
2 answers:
Blizzard [7]3 years ago
8 0
Vertex: (-1,7)
Focus: (-1, 57 over 8)
Axis of Symmetry(AOS): x=-1
Directories: y= 55 over 8
X , Y
-3 , 15
-2 , 9
-1 , 7
0 , 9
1 , 5
Vlada [557]3 years ago
5 0
Your equation f(x)=2x^2+4x+9 is in the form y=ax^2+bx+c
The vertex only relies on "a" and "b" though, so that +9 doesn't really matter in this case.  The vertex of a parabola is located where 
x=\frac{-b}{2a}=\frac{-4}{2(2)}=-1
So your x-coordinate is -1.  You need to find f(-1) to find your y-coordinate, and then you list it in the form (-1, y).
You might be interested in
What is the value of f(x)=4x-7 for x=-3
Mrac [35]

Answer:

F(x)= -19

Step-by-step explanation:

Just plug in ‘-3’ for every ‘x’ in the equation.

4(-3)-7

-12-7

F(x)= -19

8 0
3 years ago
Read 2 more answers
Could someone please help me with this one
Dvinal [7]
The answer is a because when they are added that's what they equal then divide by 5
8 0
3 years ago
3 segments represent 10 min, how much is each segment
Hoochie [10]
3 1/3 minutes each since 3 1/3 times 3 is 10
5 0
3 years ago
How do you do division?
madreJ [45]
You divide from left to right
6 0
3 years ago
What are the coordinates of the vertices of the triangle under the translation (x, y) mc011-2.jpg (x + 1, y - 4)?
Dima020 [189]
Original
(-1,1) (-4,1) (-4, 4) 

<span> translation (x, y) to (x + 1, y - 4)
</span>(0,-3) (-3,-3) (-3, 0) 

answer
(0, -3), (-3, -3), (-3, 0)
8 0
3 years ago
Read 2 more answers
Other questions:
  • Help plzzz....………………….…....................................
    7·1 answer
  • Find the constant of variation k for the direct variation. Then write an equation for the inverse variation. Y= 4.5 when x= 3
    5·1 answer
  • The following observations have been arranged in ascending order. If the median of the data is 22, then find the value of the 6t
    9·1 answer
  • Find X to the nearest tenth.<br>A) 9.3<br>B) 9.4<br>C) 9.5
    7·2 answers
  • Can y’all help please . i don’t know how to do this .
    13·2 answers
  • The diagram shows two overlapping rectangles, each measuring p by q . The area of overlap is exactly one-quarter of the total ar
    14·2 answers
  • Share what you think loves is. I think love is when you can sit next to each other and not say anything watching tv or something
    9·1 answer
  • You move left 1 unit and up 1 units, you end at (4,-2) where did u start?
    11·2 answers
  • Domain:<br> Range:<br> HELP RQ
    8·1 answer
  • If p() = x2 - 1 and q(x) - 5(x-1), which expression is equivalent to (p - q)(x)?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!