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
Mila [183]
2 years ago
9

Which is not an equation of the line going through (6, 7) and (2, –1)?

Mathematics
1 answer:
garri49 [273]2 years ago
7 0
Answer - D.

you basically find the equation of the line first and eliminate the wrong answers...

Strategy:  before u do any of this, label your coordinates as (X1,Y1) and (X2,Y2) and u can choose any of ur points to be as x1 or x2 or y1 or y1...
basically, I'll choose (6,7) as (x1,y1) and (2,-1) as (x2,y2). SO,

First you have to  find the gradient (m) of the line.
  you do this by using the formula m = Y2-Y1 / X2-X1 (where '/' is division sign) ....
Put the numbers in their respective places and your gradient will be 2x. we put the x after our number to represent it as a gradient as the straight line formula is y = mx+c and you've found the m.
NOW.
use the formula Y-Y1=m(x-x1) to find the equation of the line.Again u can use any Y1 and X1 here but remember your m is 2

replace the digits and solve...Hopefully you'll get sth like this if you use the points (6,7):
Y-7 = 2(x-6) ....
y=2x-12+7...
Y=2x-5! <<<< this is your straight line equation!
Now all u gotta do is rearrange all your options into y = mx+c.
D. is incorrect as it gives us y=2x+5 and not y = 2x-5 unlike the others 
 

Hope you get it!




You might be interested in
What method would best to solve x=5y. 2x-3y=7
ser-zykov [4K]

Answer:

substituting x=5y into 2x-3y=7, Answer: y = 1 x = 5

Step-by-step explanation:

2(5y)-3y=7

10y-3y=7

7y=7

y=1

substitute y=1 into x=5y

x=5(1)

x=5


8 0
3 years ago
ASAP I WILL( GIVE 24 POINTS)
Sloan [31]

Answer:

a. steve

b. temperature

c. table

d. tony

Step-by-step explanation:

7 0
2 years ago
Please answer my question. I'll give 100 points and mark brainliest !! :D
OLga [1]

Answer:

yes

Step-by-step explanation:i am also right lol

8 0
2 years ago
Read 2 more answers
What is the period of the graph of
julsineya [31]
I think it is 8 I’m pretty sure
4 0
2 years ago
In 2003, the population of an African country was about 23.5 million people, which is 3 million more than 5 times the population
RUDIKE [14]

Answer:

Step-by-step explanation:

An equation is 5p + 2 = 18.5.

The 1950 population was approximately 3.3 million.

Step-by-step explanation:

If p  million was the population in 1950 the equation is:

5p + 2 = 18.5

5p = 16.5

p = 16.5 / 5

p =  3.3 million.

4 0
2 years ago
Other questions:
  • Is an angle made of any 2 rays and why?
    6·1 answer
  • Write the translation
    5·1 answer
  • Explain how the process of
    8·2 answers
  • How do you do division?
    11·1 answer
  • How to simplyfi the fraction 9/11 in simplest form
    15·1 answer
  • Which three length cannot be the length of the sides of a triangle
    15·1 answer
  • Two neighbors in a rural area want to know the dsitance between their homes in miles what should the mneighbors us as a conversi
    5·1 answer
  • Steve has 12 biscuits in a tin.
    6·1 answer
  • Scott is getting balloons for his uncle's birthday party. He wants each balloon string to be 6 feet long. At the party store, st
    13·1 answer
  • The two-way table below shows the number of tickets sold for performances to the school play.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!