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
tia_tia [17]
3 years ago
12

Write an equation of the line that passes through the points (-1,8) and (2,-4)

Mathematics
2 answers:
choli [55]3 years ago
7 0

Answer:

The equation of the line that passes through the points (-1,8) and (2,-4) is:

  • y=-4x+4

Step-by-step explanation:

Given the points

  • (-1,8)
  • (2,-4)

\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}

\left(x_1,\:y_1\right)=\left(-1,\:8\right),\:\left(x_2,\:y_2\right)=\left(2,\:-4\right)

m=\frac{-4-8}{2-\left(-1\right)}

m=-4

As the point-slope form of the line equation is

y-y_1=m\left(x-x_1\right)

where m is the slope.

substituting the values m = -4 and the point (-1,8)

y-\(8\right=-4\left(x-\left(-1\right)\right)

y-8 = -4(x+1)

Add 8 to both sides

y-8+8=-4\left(x+1\right)+8

y=-4x+4

Therefore, the equation of the line that passes through the points (-1,8) and (2,-4) is:

  • y=-4x+4
vekshin13 years ago
4 0

Answer:

y=mx+b

y=-4x +12 is your equation

m= yo

your slope

Step-by-step explanation:

You might be interested in
What are significant numbers? please explain?
My name is Ann [436]
Non zero digits are always significant. any zeros between two significant digits are significant. a final zero or trailing zero in the decimal portion only are significant.
6 0
3 years ago
Help me with this please
ioda
1) not function because 6 number repeat in domain
2) Function
For 3 and 4 I guess it's
3) Function
4)not function
If any number repeat twice in the domain that will be not a function
6 0
3 years ago
Help need for test. What is the answer. There is an error in option c. It’s supposed to say line EF not line FF. Will give first
frez [133]
The answer is C I believe
7 0
3 years ago
Write an expression for the sequence of operations. <br> Subtract 4 from x, double, and add 8.
Ivenika [448]
4-x=3
Double the 3 witch is =6
And add 8 witch is
6+8=14
3 0
3 years ago
We buy these products for $50.00 and then sell them for $67.00. That means that our price markup is?
Gekata [30.6K]

That means our price markup is $67.00-$50.00=$17.00

3 0
3 years ago
Other questions:
  • You can walk 1 3/4 miles in a half hour. what is your average speed?(help meee)
    15·2 answers
  • Write your answer as a whole number and remainder.<br> 11÷6
    8·1 answer
  • A housekeeper had 3/5 of a spray bottle of a cleaning solution. She used 1/6 of the solution in a day. How much of the bottle di
    15·1 answer
  • Jrian"s plane was supposed to leave at 1:25. If he arrived one hour and 52 minutes early, what time did he arrive at the airport
    13·2 answers
  • Figure B: a reflection across the y-axisFigure a 180° rotation around the origin
    11·1 answer
  • I can do any other question except for this one just because the six is by itself like what do I do with it, can someone please
    13·1 answer
  • Find the equation of the line through (0,-2) and (4, 18).
    6·1 answer
  • Which condition does not prove that two triangles are congruent
    5·1 answer
  • Marcus is rewriting a polynomial by combining like terms. Which terms does he still need to combine to finish rewriting the poly
    13·1 answer
  • Mr. Jackson gave an exam worth 50 points.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!