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
Nikitich [7]
3 years ago
14

I dont get this so cant help daughter

Mathematics
1 answer:
sergey [27]3 years ago
5 0

1.

We are told that the coordinates of the image are of the formula:

P'(x-2 , y-3) where x and y are the actual points and x-2 and y-3 are the reflections

<u>Finding the coordinates of point A:</u>

We are given that the coordinates of reflection of A are: A'(-4 , 3)

we also know that reflected point follow the formula: P'(x-2 , y-3)

So, the points of A'(-4 , 3) follow the formula P'(x-2 , y-3)

So, their respective x and y coordinates will be equal

Hence,

x - 2 = -4

x  = -2                 [adding 2 on both sides]

Also,

y - 3 = 3

y  = 6                 [adding 3 on both sides]

Therefore, the coordinates of A are A(-2,6)

<u>Finding the coordinates of B:</u>

We are given the coordinates of B' are B'(-4 , 2)

So,

x - 2 = -4

x = -2             [adding 2 on both sides]

also,

y-3 = 2

y = 5             [adding 5 on both sides]

Therefore, the coordinates of B are: B(-2,5)

<u>Finding the coordinates of C:</u>

We are given that the coordinates of reflection of C are: C'(-2,3)

Using the general formula given in the question:

x - 2 = -2  

x = 0            [adding 2 on both sides]

y - 3 = 3

y = 6            [adding 3 on both sides]

Therefore, the coordinates of C are: C(0,6)

Finally, the coordinates of A, B and C are:

A(-2,6)   ,    B(-2,5)   ,    C(0,6)

__________________________________________________________

2.

Reflecting the pre-image along the x-axis

To reflect along x-axis, we multiply the y-coordinate by -1

Coordinates of the pre-image:

A(-2,6)   ,    B(-2,5)   ,    C(0,6)

Coordinates of points reflected along the x-axis:

A(-2,-6)   ,    B(-2,-5)   ,    C(0,-6)

You might be interested in
(Picture) MULTIPLYING MONOMIALS AND BINOMIALS
Sauron [17]

Answer:

Option C is correct, i.e. 2x² +7x -4.

Step-by-step explanation:

Given is (2x-1)(x+4)

Applying FOIL method:-

F- multiply First two, O- multiply Outer two, I- multiply Inner two, L- multiply Last two.

So, (2x-1)(x+4) = 2x*x +2x*4 -1*x -1*4

(2x-1)(x+4) = 2x² +8x -1x -4

(2x-1)(x+4) = 2x² +7x -4

Hence, option C is correct, i.e. (2x-1)(x+4) = 2x² +7x -4.

3 0
3 years ago
-5x+8y=5 need answer
adoni [48]

Answer: x=\frac{8}{5}y-1



Step-by-step explanation:

-5x+8y=5

-5x+8y+-8y=5+-8y

-5x=-8y+5

\frac{-5x}{-5} = \frac{-8y+5}{-5}

x=\frac{8}{5} y-1

8 0
3 years ago
A and B are independent events. P(A) = 0.50 and P(B) = 0.30. What is<br> PA and B)?
katen-ka-za [31]

Answer:

0.15

Step-by-step explanation:

5 0
3 years ago
What is the equation of a line with a slope of -2 that passes through the point (-2,12)?
slavikrds [6]

Answer:

y=-2x + 8 which is the required equation

Which is option C

Step-by-step explanation:

Given:

Slope = m = -2

Given points are ( -2,12)

Which is

x = -2 and y =12

TO find:

Equation of line passing through these points = ?

Solution:

The point slope form of a line is

y = mx + c

Here we don't know the value of c

To find it

Putting y = 12 , x= -2 and y = -2 in the given equation

y = mx + c

Putting values it becomes

12 = (-2)*(-2) + c

12 = 4 + c

Subtracting 4 from both sides

12-4 = 4 -4 + c

8 = c

Now we have

m = -2 and c= 8

So equation of a line is given by

y = mx + c

Putting value of m and c

y = -2*x + 8

y=-2x + 8 which is the required equation


7 0
2 years ago
Read 2 more answers
Answer asap Solve the exponential equation for x using logarithms. Round your answer to the nearest ten-thousandths (fourth deci
Sergeeva-Olga [200]

9514 1404 393

Answer:

  x ≈ 0.7798

Step-by-step explanation:

For this to be an exponential function, the variable needs to be in the exponent. That is, parentheses are needed.

  e^(8x) = 512

  8x = ln(512) . . . . . take the natural log

  x = ln(512)/8 ≈ 0.7798

3 0
3 years ago
Other questions:
  • PLEASE HELP!!!
    9·1 answer
  • Last week a store sold laptops worth a total of 10,885$each laptop cost 1,555 how many laptops did the store sell last week
    6·2 answers
  • Which values of x and y will satisfy y = 5x and 12x + 9y = 60?. . A. . . x = 1, y = 19 . . B. . . x = 35 y= 20/19. . C. . . x =
    15·2 answers
  • Plssssss helllppppppp meeeee
    9·1 answer
  • Take away the parentheses using distributive property.<br> −2(3v − 2x -1)
    10·1 answer
  • Solve for t.<br> t- 4 =<br> mit<br> -<br> Write your answer as a fraction
    8·1 answer
  • Helppppppppppppppppppppppppppppppppppppppppppppppppp
    12·1 answer
  • What is the missing value for x?
    15·2 answers
  • A 3-Pound package of cheese costs $15.72. A 1/2 – pound package costs $2.99. Which package is cheaper per pound? By how much?
    7·1 answer
  • Complete the remainder of the
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!