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
Andre45 [30]
3 years ago
7

Y=4x^2+7x vertex form

Mathematics
1 answer:
cricket20 [7]3 years ago
5 0
Use completing the square:

Ex:
y = x^2 +4x  \\  \\ y= x^2 +4x +(\frac{4}{2})^2- (\frac{4}{2})^2 \\  \\ y = (x^2 +4x+4) - 4 \\  \\ y = (x+2)^2 - 4

Now apply to your problem.
First factor out the '4' in front of the 'x^2' term
y = 4(x^2 + \frac{7}{4}x)
Apply completing the square:
y = 4(x^2 + \frac{7}{4}x +(\frac{7/4}{2})^2 -(\frac{7/4}{2})^2) \\  \\ y = 4[(x^2 + \frac{7}{4}x+\frac{49}{64}) - \frac{49}{64} ] \\  \\ y = 4(x + \frac{7}{8})^2 - \frac{49}{16}
You might be interested in
What is the mean in these numbers 50 60 80 90 100
Korolek [52]

Answer:

76

Step-by-step explanation:

<h2>MARK ME BRAINLIEST PLZZZZZZZZZZZZZZZZZZZZZZZZZZZZZZ</h2>
8 0
2 years ago
Read 2 more answers
Felicia's pets eat thirty pounds of food in two weeks. How many pounds of food would they eat in 5 weeks?
Natali5045456 [20]

Answer:


Step-by-step explanation:150 libras de comida

6 0
3 years ago
In a basketball game, Kyrie scored 5 less than twice as many as Steph. Combined the two scored 55 points. How many points did Ky
Aleonysh [2.5K]
Let steph score be x
Then kyrie score is 2x-5
Sum of the two scores is 55
Therefore x+2x-5=55
3x-5=55
3x=60
x=20

Therefore steph score is 20
And kyrie score is 2(20)-5
40-5=35
5 0
3 years ago
12 of 1412 of 14 Questions Question 12 A cable is connected to the top of a building that is 20 feet high. The cable is attached
KIM [24]

Answer:

Step-by-step explanation:

2345i91 ksbfis this is the answer

3 0
3 years ago
Write 4/5 . 3/8 in lowest terms.
r-ruslan [8.4K]
 the answer is three divide by ten
8 0
3 years ago
Other questions:
  • Need help on question 30 please
    5·1 answer
  • How do you simplify radical 144
    14·1 answer
  • FlybynightSavings.com is offering a savings account that pays 33% compounded continuously. How much interest would a deposit of
    6·1 answer
  • What number line represents the solution for the inequality -1\2x&gt;4
    9·1 answer
  • What is 3/4 divided by 4/5
    7·2 answers
  • How do you do letter c?
    6·1 answer
  • QUESTION.<br> What is an improper fraction? An improper fraction:<br> Does anyone know this?
    14·2 answers
  • Solve 3x+9 so it has no solution.
    12·1 answer
  • In AVWX, XV<br> W X and mW<br> - 27°. Find m_X.
    12·1 answer
  • Unit 7 polynomials and factoring homework 7 factoring trinomials answer key
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!