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
jeyben [28]
3 years ago
7

Find the equation of the line that runs through points (1,3) and (2, -1)

Mathematics
1 answer:
djverab [1.8K]3 years ago
6 0

Answer:

y=-4x+7

Step-by-step explanation:

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

m=(-1-3)/(2-1)

m=-4/1

m=-4

y-y1=m(x-x1)

y-3=-4(x-1)

y=-4x+4+3

y=-4x+7

You might be interested in
Write an equation in standard form of a line that goes through these two points (-1, 1) and (5, -3). Help, please!
MatroZZZ [7]

Step-by-step explanation:

assuming two points with coordinates :

(Xa,Ya) and (Xb,Yb)

use formula : (Xb-Xa)/ (Yb-Ya)

= 5+1/-3-1 = 6/-4

the standard form is 6/-4 × x

8 0
3 years ago
Help me to do this question of math ​plz plz I will mark as brainlist plz plz plz plz
natulia [17]

Answer:

Alternate Angles are equal

8 0
3 years ago
Please give me the correct answer ​
Sauron [17]
which is the question? (4/3)^2 is 16/9
5 0
3 years ago
A grocer wants to mix two kinds of coffee. One kind sells for $0.85 per pound, and the other sells for $2.70
Sedaia [141]

Answer:

x = $0.85 per pound = 19.85 pounds

y = $2.70 per pound = 1.14 pounds

Step-by-step explanation:

Let

x = $0.85 per pound

y = $2.70 per pound

x + y = 21 (1)

0.85x + 2.70y = 19.95 (2)

From (1)

x = 21 - y

Substitute x = 21 - y into (2)

0.85x + 2.70y = 19.95 (2)

0.85(21 - y) + 2.70y = 19.95

17.85 - 0.85y + 2.70y = 19.95

- 0.85y + 2.70y = 19.95 - 17.85

1.85y = 2.1

y = 2.1 / 1.85

y = 1.14

Substitute y = 1.14 into (2)

0.85x + 2.70y = 19.95

0.85x + 2.70(1.14) = 19.95

0.85x + 3.078 = 19.95

0.85x = 19.95 - 3.078

0.85x = 16.872

x = 16.872 / 0.85

x = 19.85

x = $0.85 per pound = 19.85 pounds

y = $2.70 per pound = 1.14 pounds

4 0
3 years ago
Given h(x) = -7x + 1, find x if h(x) = 50
vazorg [7]

Answer:

-7

Step-by-step explanation:

-7(-7) is 49 and 49 + 1 = 50

3 0
3 years ago
Read 2 more answers
Other questions:
  • Which statement is true about the two triangles?
    10·1 answer
  • POPICS! 1-22C Is the weight of a system an extensive or intensive property?
    11·1 answer
  • El velocimetro de don manuel marca 60 millas por hora ?cuantos kilometros por hora equivale aproximadamente lo anterior?
    11·1 answer
  • Each batch of Mrs. Crawley’s Toffee makes 14 pieces of toffee. If sandy needs 8 dozen pieces of toffee, how many batches does sh
    10·2 answers
  • Two boys divided $3.36 so that one boy received 12 cents less than three times as much as the other. How was the money divided?
    5·2 answers
  • There are 8 states in the United States that begin with the letter “M.” If you chose a state at random, what is the probability
    8·1 answer
  • What is the base 8 representation of the number 11100111
    12·1 answer
  • What would the inequality be if there are fewer than 10 yards of fabric left?
    5·2 answers
  • You are cutting out pieces of 8.5 by 11 inch construction paper that have a diameter of 2.5 inches. You have 20 pieces of constr
    14·1 answer
  • Which triangle congruence postulates can be used to prove that Triangle ABD is congruent to Triangle CDB in Rectangle ABCD?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!