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
sveta [45]
3 years ago
14

Fit a quadratic function to these three points:

Mathematics
1 answer:
kakasveta [241]3 years ago
4 0

Answer:

\large\boxed{y=-4x^2+4x-3}

Step-by-step explanation:

y=-4x^2-4x-3\\\\\text{Check for}\ (-1,\ -11):\\\\-11=-4(-1)^2-4(-1)-3\\-11=-4(1)+4-3\\-11=-4+4-3\\-11=-3\qquad\boxed{FALSE}\\===========================\\y=-4x^2+4x-3\\\\\text{Check for}\ (-1,\ -11):\\\\-11=-4(1)^2-4(1)-3\\-11=-4-4-3\\-11=-11\qquad\boxed{CORRECT}\\\\\text{Check for}\ (0,\ -3):\\\\-3=-4(0)^2+4(0)-3\\-3=-3\qquad\boxed{CORRECT}\\\\\text{Check for}\ (3,\ -27):\\\\-27=-4(3)^2+4(3)-3\\-27=-4(9)+12-3\\-27=-36+12-3\\-27=-27\qquad\boxed{CORRECT}

===========================\\y=-4x^2-4x+3\\\\\text{Check for}\ (-1,\ -11):\\\\-11=-4(-1)^2-4(-1)+3\\-11=-4(1)+4+3\\-11=-4+4+3\\-11=3\qquad\boxed{FALSE}\\===========================\\y=4x^2-4x-3\\\\\text{Check for}\ (-1,\ -11):\\\\-11=4(-1)^2-4(-1)-3\\-11=4(1)+4-3\\-11=4+4-3\\-11=5\qquad\boxed{FALSE}

You might be interested in
Julie wants to attend a two-year college that has an annual tuition of $8,600. Julie earned a grant of $1,600 for each year and
Nataliya [291]
Answer: $8,020

Steps:
$8,600 * 2yrs = $17,200

$1,600 * 2yrs = $3200

$3200 + $5980 = $9180

$17,200 - $9,180 = $8,020

She need to save $8, 020 more

I would appreciate brainliest if This was helpful and correct! :)
3 0
3 years ago
If the length of the minute hand of the clock in London commonly known as “Big Ben” is 11.25’ from the center of the clock to th
NeTakaya
A whole hour or revolution is 60 minutes and 360° so the area of a sector is:

A/πr^2=α/360

A=απr^2/360...now we need to find the angle  α/360=5/60, α=30° so:

A=30πr^2/360

A=πr^2/12 and r=11.25ft so

A=11.25^2*π/12

A≈33.13 ft^2
6 0
3 years ago
Write an inequality that describes the graph.<br><br> PLEASE HELP ASAP
Ugo [173]

Answer:

When writing an inequality from a graph, there are a few things we need to do:

Determine the equation of the line. This gives us the general form of our inequality once we remove the equal sign.

Note whether the line is dotted or solid. ...

Use the graph's shading to determine which way you

5 0
2 years ago
In the figure shown, what additional information is needed to show that △ABC≅△DEF by ASA?
Aleksandr-060686 [28]

Answer:ok

Step-by-step explanation:

7 0
3 years ago
Mason, a hardwood flooring installer, needs to calculate the amount of hardwood flooring needed to cover a floor that's 33⁄4 yar
Aleksandr-060686 [28]

Answer:

20 5/8 yd^2

Step-by-step explanation:

width = 3 3/4 yd

length = 5 1/2 yd

First change both measurements to fractions.

3 3/4 = 3 + 3/4 = 12/4 + 3/4 = 15/4

5 1/2 = 5 + 1/2 = 10/2 + 1/2 = 11/2

area = length * width

area = 15/4 yd * 11/2 yd

area = (15 * 11)/(4 * 2) yd^2

area = 165/8 yd^2

165/8 = 20 remainder 5

area = 20 5/8 yd^2

3 0
4 years ago
Other questions:
  • 6×2900÷3 what is that squared and why will it be that number
    11·1 answer
  • PLEASE HELP!!!! Show steps and explain how to get the answer please <br><br> Solve 5x-16=4(x-8)-3x
    5·2 answers
  • The rectangle below has an area of 121-x^2121−x
    9·1 answer
  • What is 1.1 in fraction form?
    13·1 answer
  • 2/9 - 1/5 • x write an equivalent expression
    8·1 answer
  • Estimate 31,969 divided by
    6·1 answer
  • (-6,4); (6-5)<br><br> Slope<br><br><br><br> Giving branliaist answer to the best one
    11·2 answers
  • Ms. Tyson is doing an engineering challenge with her students. Each team will get a kit with bags of marshmallows and boxes of t
    14·1 answer
  • Bob claimed down a ladder from his roof, while Roy climbed up another ladder next to him. Each ladder had 26 rungs. Bob went dow
    10·1 answer
  • If the area of a triangular kite is 36 square feet and its base is 8 feet, find the height of the kite
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!