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
QveST [7]
3 years ago
14

Find the point P on the line y=2x that is closest to the point (20,0) .what is the least distance between pans (20,0)?

Mathematics
1 answer:
Vsevolod [243]3 years ago
6 0
The closest point on a line, to another point, will be a point that's on a normal of that line, or a line that is perpendicular to it, notice picture below

so, y = 2x, has a slope of 2, a perpendicular line to it, will have a slope of negative reciprocal that, or \bf 2\qquad negative\implies -2\qquad reciprocal\implies \cfrac{1}{-2}\implies -\cfrac{1}{2}

so, we know that line passes through the point 20,0, and has a slope of -1/2

if we plug that in the point-slope form, we get \bf y-0=-\cfrac{1}{2}(x-20)\implies y=-\cfrac{1}{2}x+10

now, the point that's on 2x and is also on that perpendicular line, is the closest to 20,0 from 2x, thus, is where both graphs intersect, as you can see in the graph

thus  \bf 2x=-\cfrac{1}{2}x+10  solve for "x'

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

not sure on the 2nd part, but sounds like, what's the distance from that point to 20,0, well, if that's the case, just use the distance equation

\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
&({{ \square }}\quad ,&{{ \square }})\quad 
%  (c,d)
&({{ \square }}\quad ,&{{ \square }})
\end{array}\qquad 
%  distance value
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}


You might be interested in
5<img src="https://tex.z-dn.net/?f=%20x%5E%7B2%7D%20" id="TexFormula1" title=" x^{2} " alt=" x^{2} " align="absmiddle" class="la
AlladinOne [14]
X=6
First subtract 11 from both sides and you'll get 5x^2=180 then divide 180 by 5 which equals 36 you get x^2=36 find square root of 36 is 6
4 0
3 years ago
(Look at screenshot)
PilotLPTM [1.2K]

#a

H(0)

It refers to y value on graph when x is 0

So here it refers to y intercept

  • y intercept (0,5)

Hence

  • H(0)=5

#b

Observe the graph

y intercept is not 0 so it's not true

#3

Domain is set of x values in graph

  • [0,oo)

#4

Range is set of y values on graph

  • [5,50]
4 0
2 years ago
PLEASE HELP . ILL MAKE BRAINLIEST !! PLEASE
asambeis [7]

Answer:

62

Step-by-step explanation:

add

and then mutupy them together

8 0
3 years ago
Relations expressed as ordered pairs are?
romanna [79]
The relations are domain and range
5 0
3 years ago
5. The point (-2, -3) is rotated 90 degrees counterclockwise using center (0, 0).
SSSSS [86.1K]

B. (−3, 2)

I think

so plz have a good rest of ur day

7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the price, in dollars, of 2 lbs of apples?
    10·1 answer
  • Estimate the amount of time the trip will take. 290 miles at 60 mph 5 hours 6 hours 4 hours 3 hours
    10·1 answer
  • I am a two-digit number. The digits total is 13 when added together. The digit in the tens place is one less than the digit in t
    10·2 answers
  • 240 fluid ounces equals how many cups
    5·2 answers
  • Please answer ASAP!!!!
    14·1 answer
  • What is y=5(x-4)+5 in slope intercept form
    9·2 answers
  • Find the perimeter of the triangle or rectangle. The sides of each triangle are equal in length. Could you help with 16 and 18?
    10·1 answer
  • Look at the image below plz !!!!!!!!!!!!!! U R G E N T PLZ
    8·1 answer
  • A copy machine makes 24 copies per minute. How long does it take to make 138 copies?
    13·2 answers
  • Stan has an income of £2000 a month. He spends 2/5 of his income on rent. He spends 3/20 of his income on bills. He spends 1/10
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!