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]
2 years ago
5

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

Mathematics
2 answers:
Blizzard [7]2 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]2 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 does 108 × 1/3 equal?​
Alisiya [41]

Answer:

It would be 36

Explanation:

<em>First:</em>

<em>Convert any mixed numbers to fractions.</em>

<em>Then your initial equation becomes:</em>

<em>108/1 ×1/3</em>

<em> </em>

<em>Applying the fractions formula for multiplication,</em>

<em>=108×1/1×3 = 108/3</em>

<em> </em>

<em>Simplifying 108/3, the answer is</em>

<em>=36</em>

hope it helped. :)

5 0
2 years ago
Which point is on the graph of the equation y = 2 x - 5?
Aneli [31]

Answer:

4

Step-by-step explanation:

the correct answer is number 4

if X = 2 ==> 2x -5 = 2(2) -5 = 4 - 5 = -1

4 0
3 years ago
Read 2 more answers
Evaluate 2/3 - 1/6<br><br> A. 1/6<br> B. 1<br> C. 1/2<br> D. 5/6
Zina [86]

Answer:

1/2

Step-by-step explanation:

2/3-1/6

=4/6-1/6

=3/6

=1/2

8 0
3 years ago
382 3/10 - 191 87/100= math difficulties please answer this question
prohojiy [21]
3/10 = .3 and 87/100 = .87
382.3 - 191.87= 190.43
so the answer is 190.43

Hope this helped!! :))
7 0
3 years ago
Find the missing values on the diagram below. Assume that each line is evenly divided
Mice21 [21]

Answer:

Step-by-step explanation:

Can the sides of a triangle have lengths 5, 8, and 11?

8 0
3 years ago
Other questions:
  • Sally gets a cup of coffee and a muffin every day for breakfast from one of the many coffee shops in her neighborhood. She picks
    15·1 answer
  • What could the number -18 represent? Using the same situation, what would its opposite represent? What would 0 represent
    11·1 answer
  • You put the names of all the students in your class in a paper bag there are 16 boys in eight teen girls of you draw a name at r
    5·1 answer
  • What is the quotient of 3/4 divided by 5/6
    6·2 answers
  • How can I graph the inequality equation h &lt; -15
    14·1 answer
  • What is the measurement of the longest line segment in a right rectangular prism that is 26 inches long, 2 inches wide, and 2 in
    15·1 answer
  • Muffins sell 3 for $1.25. About how much will a dozen cost?
    5·2 answers
  • Identify the highest degree/order of the expression:
    9·2 answers
  • 2 (06.01 LC)
    6·2 answers
  • what the answer Juan has 12 muffins. he puts 1 forth of the muffins in a bag how many muffins does Juan put in the bag!
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!