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
ioda
3 years ago
6

Help solve 88 please

Mathematics
1 answer:
Fofino [41]3 years ago
4 0

Answer:

The equation of the line is y = -2x + 7

Step-by-step explanation:

* Lets study how to make an equation of the line from two point

- If the line passes through points (x1 , y1) and (x2 , y2)

- The form of the equation is y = mx + c, where m is the slope of the

 line and c is the y-intercept

- The rule of the slope is m = (y2 - y1)/(x2 - x1)

- The y-intercept means the line intersect the y-axis at point (0 ,c)

* Now lets solve the problem

∵ The line passes through points (-3 , 13) and (4 , -1)

- Let (-3 , 13) is (x1 , y1) and (4 , -1) is (x2 , y2)

∵ m = (y2 - y1)/(x2 - x1)

∴ m = (-1 - 13)/(4 - -3)

∴ m = (-14)/7 = -2

- Lets write the form of the equation

∵ y = mx + c ⇒ substitute the value of m

∴ y = -2x + c

- To find the value of c use one of the two points to substitute the

  values of x and y in the equation

∵ The line passes through (4 , -1)

∴ -1 = -2(4) + c

∴ -1 = -8 + c ⇒ add 8 to both sides

∴ -1 + 8 = -8 + 8 + c

∴ 7 = c

∴ y = -2x + 7

* The equation of the line is y = -2x + 7

You might be interested in
A company developed the following linear model to help budget annual expenses over time. In this model, x represents the number
olasank [31]
2010: 227681
2011: 265577
2012: 303473
and so on
8 0
3 years ago
15 POINTS<br><br> Find x if P=(3x+5) and Q=(8x-12)
wlad13 [49]

the answer for this question is p=5/3 ,(q)=3/2

7 0
3 years ago
How would you figure this question out?
Ksivusya [100]
First you multiply 2and3/8 by 4 and which you will get 3 then you subtract 23 and 3 and get 20
 
3 0
3 years ago
Read 2 more answers
Keith must choose a 3 letter password for a computer account. he can use any of the 26 upper case letters of the alphabet but he
tatyana61 [14]
The first letter can be any of 26.
The second letter can be any of the remaining 25.
The third letter can be any of the remaining 24.

26*25*24 = 15,600 passwords are possible
3 0
3 years ago
Addition strategies for third graders
Vlada [557]

just base everything off tens and go from there


5 0
3 years ago
Other questions:
  • 2Y^5 . Y^3<br> please help me please
    12·1 answer
  • If d = 20 and C = 20π
    12·1 answer
  • 45 + 5 = what i need so HELP
    6·2 answers
  • A pizza restaurant charges $10.00 for 1 pizza, $20.00 for 2 pizzas, and $28.00 for 3 pizzas. Based on this information, how much
    12·1 answer
  • Value of x in log5x = 4logx5 is
    8·1 answer
  • PLEASE HELP!!!!!
    6·1 answer
  • Given data set: -3, 5, 10, 12, 14, 18, 24, 26, 49, 60
    5·1 answer
  • I will mark someone brainliest <br><br> The snack that smiles back ____
    11·2 answers
  • Please help me with this problem im having trouble answering this
    9·1 answer
  • in one hour, the human body processes about 11.5% of the caffeine in the blood. if your teacher drank a cup of coffee with 175 m
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!