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
lesya [120]
3 years ago
11

Find the equation of the line that is perpendicular to 3y-x=7 and passes through the point (2,-1

Mathematics
1 answer:
boyakko [2]3 years ago
7 0
Hello
<span>an equation for the line in​ point-slope form and general form is :
y = ax+b   a : </span>slope  ; the <span>Passing through (x' ; y')
</span>y' = ax'+b 
y-y' =a(x-x')      and : x' =2   y' = - 1
calculate a :
let :  y = ax+b .....(D)
   ....<span>3y-x=7</span>....(D') or  y = (1/3)x+7/3
.(D) perpendicular to(D') : slope (D) × slope (D') = -1 

 slope (D') = 1/3
slop(D)×(1/3) = -1
slope (D) = -3
equation for the line    :   y-y' =a(x-x') 
y+1 =(-3) (x-2)
You might be interested in
Vv tunesday: Number Story
Zigmanuir [339]

Answer:

4 bags of candy

Step-by-step explanation:

44 divided by 11 is 4

So Keegan can make 4 bags of candy

4 0
3 years ago
Trash-A-way charges $25 per month with an additional $0.25 per pound of trash that they pick up from your house. Garbage -No-Mor
goldenfox [79]

25 + 0.25x=45

0.25x=20

x= 20/0.25 = 80

 so 80 pounds of trash

3 0
3 years ago
What is the slope, y-intercept and slope intercept equation to this graph. Plz help
fredd [130]

Answer:

y intercept is 3 and slope is 4/1

Step-by-step explanation:

3 0
3 years ago
What is true about angle ABC
abruzzese [7]

Answer:

ab

Step-by-step explanation:

A b and yes it is 1 in a better one day 1

3 0
2 years ago
I need help finishing a question. I used the explanation function on the program, but it didn't specify what to do to get the fi
leva [86]

I would compute sqrt(1 + 160pi^2) first to get approximately 39.75093337

Add this to 1 and we have 40.75093337

Then divide over 2pi to get a final approximate result of 6.48571248

So x = 6.48571248 is one approximate solution

In short, I computed \frac{1+\sqrt{1+160\pi^2}}{2\pi} only focusing on the plus for now.

----------------------

If you were to compute \frac{1-\sqrt{1+160\pi^2}}{2\pi} you should get roughly -6.167402596 as your other solution. Each solution can then be plugged into the original equation to check if you get 0 or not. You likely won't land exactly on 0 but you'll get close enough.

6 0
3 years ago
Read 2 more answers
Other questions:
  • What is the value of "x" if -2(3x+2)&gt;-8x+6
    10·1 answer
  • Factor 4x^4+7x^2-2=0
    12·1 answer
  • Yo I need this as soon as possible
    8·1 answer
  • Solve the inequality. 9 + w7 , I also have to graph it ​
    9·1 answer
  • Which of the following numbers can be expressed as a decimal that terminates?
    14·1 answer
  • A recipe calls for 5 1/2 cups of flour. Lorenzo only has 3 1/4 cups of flour. Write and solve an equation to find the additional
    5·1 answer
  • Which choice shows three lengths that cannot be the lengths of the three sides of a triangle?
    8·1 answer
  • 2.75 - 0.41 - 1.22 =______
    14·1 answer
  • Yesterday, 7 friends planned their camping trip. they spent $9 per person to buy food for their trip. Write two equivalent expre
    15·2 answers
  • A(-1, 3), B(2, 2), and C(3, -6). If the triangle is translated 5 units to the right, what are the coordinates of A'?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!