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
NeX [460]
3 years ago
12

What is the equation of the line passing through the points (-1,2) and (-2,-1)

Mathematics
1 answer:
Anna [14]3 years ago
8 0
The equation will be of the form y=ax+b, but we have to find a and b.
If you fill in the first point, you get:

2 = -a + b => b = 2+a

Second point:

-1 = -2a + b

Fill in first into second

-1 = -2a + 2 + a => -3 = -a => a=3

b = 2+a = 2+3 = 5

so the equation is

y=3x+5

Once you have this, it is safe to fill in both coordinates to double-check for mistakes.
You might be interested in
What is the explicit formula for this sequence?
SVEN [57.7K]

Answer:

The correct answer is b.)

Step-by-step explanation:

Given:

Sequence  -7, -4, -1, 2, 5.......  => a₁ = -7, a₂ = -4, a₃ = -1, a₄ = 2 and a₅ = 5

We conclude that this sequence is arithmetic series.

First we must find difference d:

d = a₂ - a₁ = a₃ - a₂ = -4 - (-7) = -1 - (-4) = -4 + 7 = -1 + 4 = 3

d = 3

The formula for n-th term of the arithmetic series is:

aₙ = a₁ + (n-1) d

aₙ = -7 + (n-1) 3

God with you!!!

4 0
3 years ago
M∠GHI = 3x° and m∠LMN = 17x°. If ∠GHI and ∠LMN are supplementary, find the measure of each angle.
Savatey [412]
If they are supplementary then 3x + 17x = 180

20x = 180

x = 9     
m<GHI = 27 degrees
m < LMN = 153 degrees
3 0
3 years ago
Read 2 more answers
Write expressions for the following scenarios.
elena-s [515]

Answer:

flaimgo/albert

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
How do you solve the equation 5x= 1 2/3
disa [49]
I hope it helps you get it right

3 0
3 years ago
Algebra Vocab help? (25 points)
oee [108]
3
6
1
4
2
5

I hope this helps :)
6 0
3 years ago
Other questions:
  • Heeeeeeeeeeeelllllllllllllpppppppp
    15·1 answer
  • The sum of interior angles of a polygon measures 11,520. How many sides does the polygon have?
    12·1 answer
  • Ronda Rollins gets a Social Security benefit of $350 per month. Her husband receives a benefit equal to 200 percent of Ronda's b
    6·2 answers
  • A way to write numbers by showing the value of each digits
    11·1 answer
  • How many centimeters(cm) of rain fell in this region during the course of the year​
    9·1 answer
  • Taylor and Desmond ran laps after school to train for the football team.The ratio of the number of laps Taylor ran to the number
    9·2 answers
  • <img src="https://tex.z-dn.net/?f=%5Csqrt123" id="TexFormula1" title="\sqrt123" alt="\sqrt123" align="absmiddle" class="latex-fo
    9·1 answer
  • YA KNOW DA BEST IN SHIP IN THE WORLD IS? THATS DRAKE AND MELANIE #DELANIE. ITS DA BEST SHIP IN DA WORRRLLLD LEMME TELL ABOUT IT!
    10·2 answers
  • What is 1+1+32+123+948 free 100Pts and i know the answer
    8·1 answer
  • Which set of side lengths form a right triangle?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!