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]
3 years ago
9

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

Mathematics
1 answer:
garri49 [273]3 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
Kim wants to draw a triangle with a 20 degrees angle and a 70 degrees angle so that the side between them is 4 inches long. How
Nikitich [7]

Answer:

2

Step-by-step explanation:

The side has to be between the angles.

So, Angle1 - Side - Angle2

So, we can only swap the angles. So no other permutation is possible with the given conditions.

[If there's any problem with the solution, please inform me]

3 0
3 years ago
Analyze tables use the table that shows the percents of blood types of 145 donors during a recent blood drive
Alenkinab [10]

Answer:

a. 16

b. 80

c. Blood type AB

Step-by-step explanation:

Given:

O = 45%

A = 40%

B = 11%

AB = 4%

Total number of donors = 145

a. No. of donors that had type B blood = \frac{11}{100}*145 = \frac{1,595}{100} = 15.95

Type B blood donors ≈ 16

b. No. of blood donors without blood type O = \frac{40 + 11 + 4}{100}*145 = \frac{55}{100}*145 = \frac{7,975}{100} = 79.75

Those without blood type O ≈ 80

c. Find the number of people that had type AB:

Type AB = \frac{4}{100}*145 = 5.8 ≈ 6. This is less than 10 donors.

Therefore, blood type AB had less than 10 donors.

6 0
3 years ago
Two dice are rolled. What is the probability of getting doubles?
Lina20 [59]

Answer:

the probability of getting doubles is 1 / 6

I hope this may be helpful

6 0
2 years ago
Read 2 more answers
jonathan ran 5 days this week. the most he ran in one day was 3.5 miles. write an inequality that shows the distance jonathan co
poizon [28]
Let m represent the number of miles this guy runs in a day.
He runs every day, so the minimum number of miles has to be greater than 0.
According to the problem statement, the max number of miles is 3.5 miles or less.

Translate this into a (symbolic) inequality.
4 0
3 years ago
Find the distance between the points shown in the coordinate plane.
klio [65]
I think it’s is c I’m not sure tho
5 0
3 years ago
Read 2 more answers
Other questions:
  • martina is on her way home in her car. she has driven 30 miles so far, which is two thirds of the way home. what is the total le
    14·1 answer
  • Jessica rented 1 video game and 3 movies for a total of $11.50.
    14·2 answers
  • Lina has 12 coins in her purse. D of them are dimes and the rest are quarters. How many quarters does Lina have? How much money
    5·1 answer
  • Explain why the value of sine ratio for an acute angle of a right triangle must always be a positive value less than 1
    15·2 answers
  • A and B share money in a ratio of 9:4. How much of the £39000 does B get?
    8·2 answers
  • Uncle Ian spent $59 at a book store. He bought science fiction and mystery novels. The science fiction novels cost $7 apiece and
    6·1 answer
  • PLEASE HELP!<br> What is the y-intercept of the line shown?
    15·2 answers
  • Find area of triangle formed by (1,1) (2,3) (4 ,5) using heron's formula ​
    10·1 answer
  • Which inequalities are true? Select the four correct answers.
    11·2 answers
  • PLEASE ELP ME ITS URGENT!!! 25 POINTS!!!!!<br> Write 2.4 × 1012 in standard notation.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!