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
icang [17]
3 years ago
13

Re-write the quadratic function below in Standard Form y=-3 (x - 2)² – 7

Mathematics
1 answer:
pav-90 [236]3 years ago
3 0

Answer:

y=-3x^2+12x-19

Step-by-step explanation:

we know that

The quadratic equation in standard form is equal to

y=ax^{2} +bx+c

we have

y=-3(x-2)^{2}-7

This is a quadratic equation in vertex form

Convert to standard form

y=-3(x^2-4x+4)-7

Apply distributive property

y=-3x^2+12x-12-7

Combine like terms

y=-3x^2+12x-19 ----> quadratic equation in standard form

You might be interested in
Pleeeeese help me as fast as you can!!!
Aleonysh [2.5K]

Answer:

A. y=3x-10

C. y+6=3(x-15)

Step-by-step explanation:

Given:

The given line is 6x+18y=5

Express this in slope-intercept form y=mx+b, where m is the slope and b is the y-intercept.

6x+18y=5\\18y=-6x+5\\y=-\frac{6}{18}x+\frac{5}{18}\\y=-\frac{1}{3}x+\frac{5}{18}

Therefore, the slope of the line is m=-\frac{1}{3}.

Now, for perpendicular lines, the product of their slopes is equal to -1.

Let us find the slopes of each lines.

Option A:

y=3x-10

On comparing with the slope-intercept form, we get slope as  m_{A}=3.

Now, m\times m_{A}=-\frac{1}{3}\times 3=-1. So, option A is perpendicular to the given line.

Option B:

For lines of the form x=a, where, a is a constant, the slope is undefined. So, option B is incorrect.

Option C:

On comparing with the slope-point form, we get slope as  m_{C}=3.

Now, m\times m_{C}=-\frac{1}{3}\times 3=-1. So, option C is perpendicular to the given line.

Option D:

3x+9y=8\\9y=-3x+8\\y=-\frac{3}{9}x+\frac{8}{9}\\y=-\frac{1}{3}x+\frac{8}{9}

On comparing with the slope-intercept form, we get slope as  m_{D}=-\frac{1}{3}.

Now, m\times m_{D}=-\frac{1}{3}\times -\frac{1}{3}=\frac{1}{9}. So, option D is not perpendicular to the given line.

8 0
3 years ago
a gallon of chocolate milk sells for $3.14. a snack-size bottle of chocolate milk sells for 3 cents per ounce. which is a better
Yuliya22 [10]
A snack-size bottle of chocolate milk is better because it cost less.
6 0
3 years ago
Read 2 more answers
Solve this. Please and thank you.
Cerrena [4.2K]
The answer is d) -3/2=x
8 0
3 years ago
Hi there!<br><br> Can you help me please? Thanks! <br><br> Please explain
Bingel [31]
H=-t^2+95
The y intercept here is 95, and it represented from where the boy threw the ball.

If he threw it from 95 ft above the ground, the best answer for where he is is on a bridge.
His backyard is at 0 ft (sea level). An underground cave is below sea level. A ladder is probably not 95 ft.

Final answer: D
5 0
3 years ago
[ 64 (-8) ] (-2) help it’s for my quiz
Lana71 [14]

(64 \times ( - 8)) \times ( - 2)

( - 512) \times ( - 2)

1024

Therefore, the answer is <u>1</u><u>0</u><u>2</u><u>4</u><u>.</u>

<h3><em>Benjemin</em></h3>

3 0
3 years ago
Other questions:
  • Each member of a nine-person committee attends any given meeting of the committee with probability 1/2. What is the probability
    10·1 answer
  • A single tree produces about 2.6 × 10² lb of oxygen each year. The Amazon rainforest has about 3.9 X 10^11 trees.
    5·2 answers
  • F varies jointly as g, h, and j. One set of values is f = 18, g = 4, h=3, j=5. Find f when g= 5, h=12,and j=3
    7·1 answer
  • Liberty bought a make-your-own salad when she went out to lunch at a restaurant. The salad cost $4, plus $0.85 for each salad to
    11·2 answers
  • What the awnser is to this equation
    10·2 answers
  • Can someone please help me with this.
    7·1 answer
  • Stock valued at $49.50 decreases in value by 12% each year. How much will the stock be worth in 5 years? Round your answer to th
    9·1 answer
  • A rectangular painting measures 12 inches by 14 inches and contains a frame of uniform width around the four edges the perimeter
    9·2 answers
  • Rewrite the expression x -3/11<br> in radical form.
    5·2 answers
  • Can someone please send the answers to these questions with explanation? (Attachment) (30 POINTS)
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!