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
QveST [7]
3 years ago
9

Line passes through points (-1,-2) and (1,4). What is the equation of the line?

Mathematics
2 answers:
scoray [572]3 years ago
5 0

Answer: y=3x+1

Step-by-step explanation:

First find slope using formula

m= y2–y1/x2–x1

m= 4– (—2)/ 1— (—1)

m= 3

So,

y= mx+b

y=3x+b. Using (1,4) plug into equation of a line

4= 3(1)+b

4 – 3= b

1= b. So,

y=3x+1

GenaCL600 [577]3 years ago
3 0

Answer:

y= 3x+1.

Step-by-step explanation:

(-1,-2) and (1,4)

x1 = -1

x2= 1

y1= -2

y2=4

y - y1= (y2 - y1)

______ ( x - x1)

(x2 - x1)

y- (-2)=(4-(-2))

_____ (x- (-1))

(1-(-1))

y+2= 4+2

___ (x+1)

1+1

y+2= 6

_ (x + 1)

2

y+2=3(x+1)

y+2=3x+3

y=3x+1.

You might be interested in
Help Asap! 20 Points What is value of x and y?
Sergio039 [100]
The answer is a i think but if u get it wrong im sorry
4 0
3 years ago
The angle of elevation of a tower, 45 m high from a ball on the ground 52 degree (a) how far is the ball from the foot of the to
blsea [12.9K]

The distance of the ball from the foot of the tower is : 35.18m

The ball would be moved 57.2m away from the foot of the tower for the Angle of elevation to be halved.

<h3>What is angle of elevation?</h3>

Angle of elevation is the angle formed between the horizontal and the  line of view from the vertical.

Analysis:

The height of the tower and the distance of the ball from the foot of the tower form a right angle triangle.

so we use trigonometry.

a) let distance of the ball from foot of tower be x.

  so that, tan 52 = 45/x

  x = 45/tan52

  x = 45/1.279 = 35.18m

b) let the distance of the ball in the new position from the foot of the tower be y.

if the angle of elevation is halved, then new angle is 52/2 = 26°

 tan 26 = 45/y

y = 45/tan26 = 45/0.487 = 92.4m

distance moved from old position to new position = 92.4 - 35.18 = 57.2m

In conclusion, the distance of the ball from the foot of the tower and the distance the ball should move to make its elevation 26° are 35.18m and 57.2m respectively.

Learn more about angle of elevation: brainly.com/question/88158

#SPJ1

4 0
2 years ago
pleasee helpp honestly im stuck i dont know how to graph this equation. it says to graph the funcion c(x)=3x-1
ohaa [14]

first take the 3 and place it over the negative one in quadrant 2

6 0
3 years ago
Read 2 more answers
I need help with this question and no link or I’ll report u
Ugo [173]
It would be 35 because we can assume that both y’s on the left side are parallel to the right side, and so they would have to be a 35 on each side
3 0
3 years ago
12 cm<br> 3 cm<br> 3 cm<br> 3.14
SVEN [57.7K]
What is your question
3 0
3 years ago
Read 2 more answers
Other questions:
  • A parabola is represented by the equation y = x2 + 6x − 17. The x-intercepts of the parabola are____ and_____ . The y-intercept
    5·2 answers
  • Applying the interest allowance method, compute Julie's and Jennifer's share of net income if Julie invested $40,000 and Jennife
    14·1 answer
  • Tunny a VS Siny value
    5·2 answers
  • which equation represents a line parallel to the line whose equation is -2x+3y=-4 and passes through the point (1,3)?
    15·2 answers
  • A vase contains r roses and 6 tulips. Write two equivalent expression for the total number of flowers in the vase.
    5·1 answer
  • At a garage sale books cost $1.50 each and musical
    10·2 answers
  • Simplify each sum or difference. State any restrictions on the variables.
    12·1 answer
  • How does the exponent of each power of ten correspond with placing a decimal
    15·1 answer
  • 4x+3y=16 x= -3 and y= -2 Solve the equation​
    8·1 answer
  • Pls help Thankyou so much ??
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!