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
Rzqust [24]
2 years ago
12

Hello i really need help on this please​

Mathematics
2 answers:
bearhunter [10]2 years ago
7 0

#1

Equation in point slope form

  • y-y1=m(x-x_1)
  • y+22=-5(x-5)
  • y+22=-5x+25
  • y=-5x+3

#2

Slope

  • m=5+2/-3+4
  • m=7/1
  • m=7

Equation in point slope form

  • y+2=7(x+4)
  • y+2=7x+28
  • y=7x+26
Elza [17]2 years ago
3 0

Answer:

y = -5x + 3

y = 7x + 26

Step-by-step explanation:

<u>Question 1</u>

Given:

  • Slope (m) = -5
  • Point (x₁, y₁) = (5, -22)

Substitute these values into the point-slope formula: y - y₁ = m(x - x₁)

⇒ y - (-22) = -5(x - 5)

⇒ y + 22 = -5x + 25

⇒ y = -5x + 3

<u>Question 2</u>

Given:

  • Point (-4, -2) ⇒ (x₁, y₁)
  • Point (-3, 5) ⇒ (x₂, y₂)

Use the slope formula to find the slope:

\sf \textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{5-(-2)}{-2-(-4)}=7

Substitute these values into the point-slope formula: y - y₁ = m(x - x₁)

⇒ y - (-2) = 7(x - (-4))

⇒ y + 2 = 7(x + 4)

⇒ y + 2 = 7x + 28

⇒ y = 7x + 26

You might be interested in
What is the y-coordinate for the solution to the system of equations?<br><br> {y=1/2x−4<br> {y=−2x+1
katovenus [111]

Answer:

y = -3

Step-by-step explanation:

{y = x/2 - 4

y = 1 - 2 x

Substitute y = x/2 - 4 into the second equation:

{y = x/2 - 4

x/2 - 4 = 1 - 2 x

In the second equation, look to solve for x:

{y = x/2 - 4

x/2 - 4 = 1 - 2 x

Add 2 x + 4 to both sides:

{y = x/2 - 4

(5 x)/2 = 5

Multiply both sides by 2/5:

{y = x/2 - 4

x = 2

Substitute x = 2 into the first equation:

{y = -3

x = 2

Collect results in alphabetical order:

Answer:

{x = 2

y = -3

6 0
2 years ago
Yuri computes the mean and standard deviation for the sample data set 12, 14, 9, and 21. He finds the mean is 14. His steps for
Tpy6a [65]

Answer:

B. Yuri divided by n instead of n-1

Step-by-step explanation:

It was stated in the question that the dataset was sample dataset. For a sample dataset, the standard deviation is given by the formula,

σ = √ Σ (Xi - mean)²/(n - 1) where i = 1,2,3.....n

Since this is just a sample dataset and not the whole population, Yuri should have divided by n-1 instead of n.

3 0
3 years ago
PLZ HELP THIS IS DUE TODAY AND NO LINKS PLZ.
anastassius [24]

Answer:

D is the best answer to the question

8 0
2 years ago
I need help with trig identities!!! (You will get 10 points!)
IgorLugansk [536]

Look at the picture. I have no idea why I can't add an answer.

4 0
3 years ago
A ribbon is 30cm long and it is cut into three pieces such that each piece is 2cm longer than the next. Represent this as an equ
Alisiya [41]

Answer:

Step-by-step explanation:

3 pieces such that each piece is 2 cm longer then the next...

x , x + 2, x + 4

x + x + 2 + x + 4 = 30

3x + 6 = 30

3x = 30 - 6

3x = 24

x = 24/3

x = 8

x + 2 = 8 + 2 = 10

x + 4 = 8 + 4 = 12

check...

8 + 10 + 12 = 30

18 + 12 = 30

30 = 30 (correct)...it checks out

the ribbon lengths are : 8 cm, 10 cm, and 12 cm

3 0
3 years ago
Read 2 more answers
Other questions:
  • Chuck must save a total of 180 for a new bike. So far he has saved 4/5 of the amount. How much money has chuck saved for the bik
    11·1 answer
  • Each leg of a 45-45-90 triangle has a length of 6 units. What is the length of its hypotenuse?
    11·1 answer
  • How to solve this -13=r/9 +8
    6·1 answer
  • Find the equation of the line that is parallel to the given line and passes through the given point. y = −6x + 3; (5, 0) The equ
    9·1 answer
  • Ahmed is riding the elevator in a building. The building has floors above and below ground level. Ahmed uses the expression belo
    9·2 answers
  • Please help as soon as possible
    8·1 answer
  • Which choice is equivalent to the quotient below?​
    8·1 answer
  • If x= -1 and y = -21, then xy – 5x =
    8·1 answer
  • What is the solution of 3x + 5 = 2x - 7?
    11·1 answer
  • There is a closed carton of eggs in Mai's refrigerator. The carton contains e eggs and it can hold 12 eggs. What does the inequa
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!