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
posledela
2 years ago
12

What is the vertex of the graph of f(x) = x2 + 10x - 9? A) (-5, -34) B) (-5, -9) C) (5, -9) D) (5, 66)

Mathematics
2 answers:
Delvig [45]2 years ago
5 0

Answer:

hello : A) (-5, -34)

Step-by-step explanation:

f(x) = x2 + 10x - 9

      = (x² +10x +25)-25 -9

f(x) = (x+5)² -34 standard vertex form

answer : A) (-5, -34)

sukhopar [10]2 years ago
4 0

Answer:

A) (-5, -34)

Step-by-step explanation:

f(x) = x^2 + 10x - 9

We complete the square to get the equation in vertex form

Take the coefficient of the x term and divide by 2 then square it.  We add it and then subtract it not to change the value of the equation

f(x) = x^2 + 10x +(10/2)^2 - (10/2)^2 - 9

f(x) = x^2 +10x +25 -25 -9

f(x) = (x^2 +10x +25) -34

The term in parentheses simplified to (x+10/2) ^2

     = (x+5)^2 -34

   = (x - -5)^2 -34

This is in the form (x-h)^2 +k

The vertex is (h,k)  h=-5 and k=-34

(-5,-34)

You might be interested in
<img src="https://tex.z-dn.net/?f=4%20%20%5Ccos%2860%20%2B%20%20%5Calpha%20%29%20%20%5Csin%2830%20%2B%20%20%5Calpha%20%29%20%20%
Yuri [45]

Answer:

i am very bad at o math i am only at 8 sorry

Step-by-step explanation:

if you could give me a brainliest.

5 0
2 years ago
If A = (0,2,3,4,9,11), B = {2,3,6,8,9,10) and C= {0,2,3,9), then (A-B) n(A-C) is​
timofeeve [1]

Answer:

(A-B)n(A-C) ={ }

<h3><em>hope</em><em> </em><em>it</em><em> </em><em>will</em><em> </em><em>help</em><em>.</em></h3>

<em>Wishing</em><em> </em><em>a</em><em> </em><em>nice</em><em> </em><em>day</em><em>.</em>

8 0
2 years ago
calvin paints pictures and sells them at art shows. He charges $56.25 for a large painting. He charges $25.80 for a small painti
stellarik [79]
The answer is 1,111.90
3 0
3 years ago
Read 2 more answers
Four examples of parallel lines​
MatroZZZ [7]

Answer:

Step-by-step explanation:

Parallel line examples in real life are railroad tracks, the edges of sidewalks, marking on the streets, zebra crossing on the roads, the surface of pineapple and strawberry fruit, staircase and railings, etc

5 0
3 years ago
subtract 6/8 - 1/4 enter your answer in the box below as a fraction in lowest terms using the slash ( / ) as the fraction bar
harkovskaia [24]
2/4 but if you reduce you get 1/2
7 0
3 years ago
Other questions:
  • The Nelsons own a home whose market value is $132,000. Their municipality taxes at 70% and the rate is 80 mills or $80 per thous
    9·2 answers
  • Determine if each table shown below represents a function or not ?
    13·2 answers
  • What is 0.5, 3/16, 0.75, 5/48 to Least to greatest?
    5·1 answer
  • tanner collected 360 cans and bottles, this was 40% of what Reggie collected, how many cans and bottles did Reggie collect
    5·2 answers
  • 2(8p + 9y) what is the anwser
    15·2 answers
  • A plumber charges a $75 flat fee for jobs lasting up to an hour and $30 for each hour of labor after the first hour. which expre
    14·2 answers
  • What is 4^6 times 2^3=??
    6·1 answer
  • 10. Find the values of x and y.
    14·1 answer
  • Charles buys 10 drinks and 3 sandwiches for $34. Isabel buys 5 drinks and 4
    5·1 answer
  • Input Output<br> 1<br> 3<br> 2<br> 6<br> 3<br> 9<br> 4 12 <br> is the relation a function
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!