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
Pavlova-9 [17]
2 years ago
11

What is an equation for the line that passes through the points (-2,3) and (2,1)?

Mathematics
2 answers:
Nastasia [14]2 years ago
3 0

Answer:

y = -1/2x + 2

Step-by-step explanation:

Vsevolod [243]2 years ago
3 0

Answer:

y = -0.5x + 2

Step-by-step explanation:

In order to find the equation of a line given two coordinates, you must first find the slope of the equation.

y = mx + b

To find slope (m), use the equation below:

Slope = (y2 - y1 ) / (x2 - x1 )

(2, 1)

(-2, 3)

y2 = 1

y1 = 3

x2 = 2

x1 = -2

Slope = (1 - 3) / (2 - -2) = (-2) / (4) = -0.5

y = -0.5x + b

Next, plug in one coordinate in order to solve for b:

Let's plug in the numbers (-2,3)

3 = -0.5 (-2) + b

b = 3 - 1 = 2

Line's equation =

y = -0.5x + 2

You might be interested in
Evaluate -x - y when x = -12 and y = 2
xz_007 [3.2K]

Answer:

-14

Step-by-step explanation:

subtract

8 0
3 years ago
Read 2 more answers
Sasha timed how long she took to complete two laps of the track. Her first trip took 36.5s. Her second trip took 35.8s. Calculat
Montano1993 [528]

the present of decrease is around 1.92%

5 0
3 years ago
Y is inversely proportional to x, when Y = 2, x = 4.
irina [24]

Answer:

Constant of proportionality is y divided by x.  y is 2 and x is 4.  2 divided by 4 is 1/2.

Let me know if that is correct.

Step-by-step explanation:

6 0
3 years ago
If it takes 6 hours for a plane to travel 720km with a tail wind and 8 hours to make the return trip with a head wind. Find the
denis-greek [22]

The speed of wind and plane are 105 kmph and 15 kmph respectively.

<u>Solution:</u>

Given, it takes 6 hours for a plane to travel 720 km with a tail wind and 8 hours to make the return trip with a head wind.  

We have to find the air speed of the plane and speed of the wind.

Now, let the speed wind be "a" and speed of aeroplane be "b"

And, we know that, distance = speed x time.

\text { Now, at tail wind } \rightarrow 720=(a+b) \times 6 \rightarrow a+b=\frac{720}{6} \rightarrow a+b=120 \rightarrow(1)

Now at head wind → 720=(a-b) \times 8 \rightarrow a-b=\frac{720}{8} \rightarrow a-b=90 \rightarrow(2)

So, solve (1) and (2) by addition

2a = 210

a = 105

substitute a value in (1) ⇒ 105 + b = 120

⇒ b = 120 – 105 ⇒ b = 15.

Here, relative speed of plane during tail wind is 120 kmph and during head wind is 90 kmph.

Hence, speed of wind and plane are 105 kmph and 15 kmph respectively.

6 0
3 years ago
Select all ratios equivalent to 10:5.<br> 110:55<br> 24:2<br> 14:6
dlinn [17]
115:55 bc if you divide them both you fat the same answer which is 2
4 0
2 years ago
Read 2 more answers
Other questions:
  • If 57.75 is after a 30% taken off then what was the original price
    15·1 answer
  • What is the decimal and percent of 258/300
    14·2 answers
  • 568.746 rounded to the nearest hundred
    5·2 answers
  • Henry's brother is bigger and now his crib must be lowered. Once it's lowered, the m &lt;2 is 30°. What are the rest of the angl
    8·1 answer
  • Evaluate this expression. Choose the best answer. 9! A. 5,040 B. 362,880 C. 326,880 D. 40,320
    15·2 answers
  • What is 927 divided by 9 step by step
    6·1 answer
  • The triangles below are similar. Find the length of x
    14·1 answer
  • Dion can type 155 words in 6 minutes. Assuming that he can type at a
    15·2 answers
  • Help me please which one is it
    7·2 answers
  • Write and equation based on the graph. Please help me 20 points!
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!