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
navik [9.2K]
3 years ago
7

Complete the equation of the line through 2,1 and 5,-8

Mathematics
2 answers:
SOVA2 [1]3 years ago
5 0

Answer:

Step-by-step explanation:

Hello : let  A(2,1)    B(5,-8)

the slope is :   (YB - YA)/(XB -XA)

(-8-1)/(5-2)  = -9/3=-3

an equation is : y=ax+b     a is a slope

y = -3x +b

 

the line through point  (2,1) :  1= -(3)(2)+b    

b = 7

the equation is : y =-3x+7  

Neko [114]3 years ago
3 0

Answer:

y - 1 = -3(x - 2)

Step-by-step explanation:

As we move from the point (2, 1) to the point (5, -8), x (the run) increases by 3 and y (the rise) decreases by 9.  Thus, the slope of this line is

m = rise / run = -9/3, or m = -3.

Then the equation of the line (in point-slope form) is

y - 1 = -3(x - 2)

You might be interested in
Please help me asap.​
KonstantinChe [14]

Answer:

<T

Step-by-step explanation:

You can tell that the angles and length of the triangles are equal from the marks. For example, angle J has 2 lines on its angle so i looked for the other angle with 2 lines on it which happens to be angle S.

Comment if u dont understand

3 0
2 years ago
The length of a rectangle is 3 meters more then the width the perimeter of ractangle is 26 meters
Fudgin [204]

Answer:

Step-by-step explanation:

Let's say the width is x. If the length is 3 meters more than the width, the the length is x+3.

A rectangle has 4 sides. 2 widths and 2 lengths. If the perimeter is 26 meters, you can plug in your expressions for the width and the length to solve for x.

2(x+3) +2(x)=26

2x+6+2x=26

4x+6=26

4x=20

x=5.

If x=5, that means that your with is 5 meters, and your length is 8 meters (5+3)

5 0
2 years ago
Determine the slope of a line that goes through (2,7) and (11,10)
tia_tia [17]

Answer:

1/3

Use the slope formula and simply the fraction.

4 0
2 years ago
A right triangle has a hypotenuse length of 12, and one side length of 9. find the missing side length. do the side lengths form
Rina8888 [55]

Use the Pythagorean theorem:

a^2+b^2=c^2

c - a hypotenuse

a, b - legs

We have: a = 9 and c = 12. Substitute:

9^2+b^2=12^2

81+b^2=144               <em>subtract 81 from both sides</em>

b^2=63\to b=\sqrt{63}\\\\b=\sqrt{9\cdot7}\\\\b=\sqrt9\cdot\sqrt7\\\\ \boxed{b=3\sqrt{7}}

A Pythagorean triple consists of three positive integers a, b and c, such that

a^2+b^2=c^2.

b=3\sqrt{7} is not positive integer.

<h3>The sides of the triangle do not form a pythagorean triple.</h3>
5 0
3 years ago
A student leaving school walks 2.8 km north and then walks 1.2 km south. What is
vova2212 [387]

Answer: 1.6km

Step-by-step explanation: 2.8km - 1.2km

The student is still north from school.

I hope this answer helped! :)

4 0
3 years ago
Read 2 more answers
Other questions:
  • Beth and Sherry partnered together in swimming laps to raise money for the local food bank. Beth raised $15 plus $0.65 per lap t
    14·1 answer
  • What is the value of the problem below?
    6·1 answer
  • A model rocket is launched with an initial upward velocity of201ft/s . The rocket's height h (in feet) after t seconds is given
    6·1 answer
  • Click the correct symbol 2,000 lb 1 T &lt;, &gt; , +
    5·1 answer
  • What happened as a result of the fall of the Western Roman Empire?
    6·1 answer
  • What is a simpler form of <br> 5n(3n³−n²+8) ?
    12·1 answer
  • What is the distance between (-5, 10) and (-5, -1) ? Label your answer with<br> the word United
    10·1 answer
  • Please helpppp I will give brainliest
    14·1 answer
  • Which of the following polynomial functions is graphed below? OA. f(x) = (x - 2) ^ 2 * (x + 3) * (x - 1) O B. f(x) = (x + 2) ^ 2
    12·1 answer
  • Please help me
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!