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
Wittaler [7]
2 years ago
7

Write the point slope form of an equation of the line through the points (-7,7) and (4,1)

Mathematics
2 answers:
Andre45 [30]2 years ago
8 0
  • (-7,7)
  • (4,1)

Slope:-

  • m=1-7/4+7
  • m=-6/11

Equation in point slope form

  • y-7=-6/11(x+7)

Option A

jolli1 [7]2 years ago
3 0

Answer:

\textsf{A)} \quad y-7=-\dfrac{6}{11}(x+7)

Step-by-step explanation:

<u>Step 1:  Find the slope</u>

Define the points:

\textsf{let}\:(x_1,y_1)=(-7,7)

\textsf{let}\:(x_2,y_2)=(4,1)

Use the <u>slope formula</u> to find the slope:

\textsf{slope}\:(m)=\dfrac{y_2-y_1}{x_2-x_1}=\dfrac{1-7}{4-(-7)}=-\dfrac{6}{11}

<u>Step 2:  Find the equation</u>

Use the found slope from step 1 together with one of the given points in the <u>point-slope form of a linear equation</u>:

\implies y-y_1=m(x-x_1)

\implies y-7=-\dfrac{6}{11}(x-(-7))

\implies y-7=-\dfrac{6}{11}(x+7)

<u>Conclusion</u>

Therefore, the equation of the line that passes through the points (-7, 7) and (4, 1) is:

y-7=-\dfrac{6}{11}(x+7)

You might be interested in
A recipe requires 1/4 lb of onions to make 3 servings of soup mark has 1.5 lbs of onions how amy sevings can mark make
Flura [38]
Sounds like 18 servings to me.

6 quarters go into 1.5

6 x 3 is 18 so 18 servings.
5 0
4 years ago
Andrea and sula ran a race on a track that was 100 meters long.When andrea crossed the finish line sula was exactly 5 meters beh
cestrela7 [59]
Andrea will be at 95 meters and Sula would win I think.
7 0
3 years ago
Solve the inequality. Show your work<br><br> 6y -8 ≤ 10
prohojiy [21]
6y - 8 ≤ 10   Add 8 to both sides
     6y ≤ 18   Divide both sides by 6
       y ≤ 3

Y is less than or equal to 3.

4 0
4 years ago
Read 2 more answers
Valentina has a tray where she keeps all of her important papers. The tray is in the shape of a rectangular prism with no top.
yulyashka [42]
The answer is 300 as 2.5x10x12=300
4 0
3 years ago
Read 2 more answers
can someone pls help me? i have no idea what to do. pls show the work steps for the questions. i will mark u as
tiny-mole [99]

Ok, so the question is based on geometric progression. Remember, the formula for calculating the nth-term of a geometric progression is: a*r^{n-1}. The a in the expression stands for the 1st term of the sequence, and r is the common ratio of the elements of the sequence. Now let's take a look at the problem.

"A ping pong ball has a 75% rebound ration". We can infer that our common ratio, r, is 75% which is 0.75.

"When you drop it from a height of k feet...", this means the first height you drop it from, a.k.a, the first term.

Now going back to the expression, the nth-term = a*r^{n-1}, we can substitute our common ration, 0.75 with r, and our 1st term, k, with a. This becomes: k * 0.75^{n-1}. This becomes our expression.

a. The highest height achieved by the ball after six bounces. Our nth-term here is 6, so let's use our expression to find the 6th term. n_{6} = 235 * 0.75^{6-1} = 235*0.75^{5} = 235*0.2373 = 55.7655ft

b. The total distance travelled by the ball when it strikes the ground for the 12th time. This involves the use of the sum of elements in the geometric progression. The formula for that is \frac{a(1 - r^{n})}{1-r}, provided that r is less than 1, which it is in this case, since 0.75 is less than one. Our nth-term here is 12, so we substitute.

\frac{235(1-0.75^{12})}{(1-0.75)} = 910.2242ft

6 0
3 years ago
Other questions:
  • Quickly answer please
    10·1 answer
  • Nick thought of a counting number, and then he added the next counting number to it. He got the sum of 79. What was Nick's numbe
    6·1 answer
  • write the ratio in simplest form. the hockey team played 82 regular season games last year. If they won 44 games, what is the ra
    9·1 answer
  • Write an equation of the line with a slope of 0 and y-intercept of 5.
    7·2 answers
  • A New York Times poll on women's issues interviewed 1025 women randomly selected from the United States, excluding Alaska and Ha
    10·1 answer
  • What is the square root of 30 to two decimal places
    7·1 answer
  • During a musical an orchestra is playing. As the music plays, the volume changes in the beginning of the piece can be modeled by
    14·1 answer
  • 7x + 2x^2 + 3x^2 - 2x
    15·1 answer
  • 3n at n = 11 <br><br>A) 8 <br><br>B) 14 <br><br>C) 7 <br><br>D) 33​
    11·1 answer
  • This question is too hard
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!