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
Which numbers will round to 3.75 when rounded to the nearest hundredth and will round to 3.7 when rounded to the nearest tenth
Lina20 [59]

Answer:

3.646

3.648

3.647Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
What is 11π/6 in degrees?
mojhsa [17]

Answer:

The answer is D which is 330

5 0
3 years ago
Read 2 more answers
What is 34827 x 7 =<br><br> Jasper over here..
kirill [66]

Answer:

243789

Step-by-step explanation:

(34827) 7 = 243789

Hope this helps!

3 0
2 years ago
Read 2 more answers
Please Help! will give Brainliest!
mixer [17]

1. The x-intercepts are x = 0 and x = 6. You can find these by looking for where the line crosses the x-axis. You can see here that it does so at 0 and 6.


2. The maximum value for this function is looking for the f(x) value at the highest point. In this case, you will see that f(x) at the highest point is 120. This happens at x = 3. Once again, this can be found just by looking for the highest point on the graph.


3. Since that is the absolute highest point, it is also the point where is goes from increasing to decreasing. As a result, we know the increasing interval is x<120 and the decreasing interval is x > 120.


4. Finally, the average rate of change between 3 and 5 is -30. You can find this by determining the amount of change in f(x) and dividing it by the amount of change in x. The basic formula is below.


\frac{new f(x) - old f(x)}{new x - old x}

\frac{60 - 120}{5 - 3}

\frac{-60}{2}

-30

6 0
3 years ago
A stack of 5 books weighs 9.5 pounds. If each book weighs the same amount, how much does each book weigh?
hjlf

Answer:  The same amount of book weighed is 14.5.

Step-by-step explanation:

So there is 5 books

9.5 pounds

9.5 + 5 = 14.5

So, Each book weighs about 14.5.

8 0
3 years ago
Other questions:
  • 3(2v-9)=5 solve for v
    6·1 answer
  • Tanisha’s mother buys 38 lemons. It takes 8 lemons for 80 ounces of lemonade. She needs to make 448 ounces of lemonade. Does Tan
    6·1 answer
  • G divided by 5/6 equals to 2
    6·2 answers
  • What is 8/10 x 1/2= ??
    7·2 answers
  • Item 2 In a box-and-whisker plot, what fraction of the data is greater than the first quartile? Enter the fraction in simplified
    11·1 answer
  • 4.
    7·1 answer
  • Please help me need ASAP
    13·1 answer
  • What is TR(39)? <br> pls help this is going to be on my exam...
    13·1 answer
  • Write the decimal as a fraction in simplest form.​
    15·1 answer
  • Algebraically manipulating the formula FV = P +Prt, find the time period in years (to the nearest whole year) it would take to q
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!