Question and answer
Write an equation in slope-intercept form for the line that is parrallel to y=2x+6 and passes through the point (4,-4)
Question
Asked 12/15/2013 1:16:13 PM
Updated 6/28/2014 9:20:27 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [6/28/2014 9:20:01 AM]
Get an answer
Original conversation
User: Write an equation in slope-intercept form for the line that is parrallel to y=2x+6 and passes through the point (4,-4)

Weegy: There are two relevant trig identities, as well as the definition of the tangent: tan(z) = sin(z) / cos(z) These are the two identities. [ [ You can find them in any trig book or in Wikipedia: (1) sin(2x) = 2*sin(x)*cos(x) (2) cos(2x) = cos^2(x) - sin^2(x) - - - - - - - - - - First I have to compute cos(x) When the sine is 5 / 13, that means that, by the definition of the sine: sin(x) = (side opposite angle) / (hypotenuse) So letting "side opposite" = 5 and "hypotenuse" = 13, and calling the length of the "side opposite" a and the length of the hypotenuse c, by the Pythagorean Theorem (where b = the length of the other side, called the adjacent side): a^2 + b^2 = c^2..............So: 5^2 + b^2 = (13)^2 25 + b^2 = 169 b^2 = 169 - 25 = 144 b = sqrt(144) = 12. So cos(x) = 12/13.....<<<<<....This is critical (This is called a 5-12-13 right triangle.) - - - - - - - - Since sin(2x) = 2*sin(x)*cos(x), sin(2x) = 2 * (5/13) * (12/13) = 120 / 169 = 0.71006.....<<<<<...Answer for sin(2x) - - - - - - - - Since cos(2x) = cos^2(x) - sin^2(x) cos(2x) = (12/13)^2 - (5/13)^2 = [(144 - 25) / 169] = (119 / 169) = 0.70414......<<<<<...Answer for cos(2x) - - - - - - - - Since tan(2x) = sin(2x) / cos(2x) = (120 / 169)) / (119 / 169) = (1 / 169) = 0.00592.....<<<<<...Answer for tan(2x) - - - - - - - - Summarizing: - - - - - - - - - - - - sin(2x) = (120 / 169) = 0.71006 cos(2x) = (119 / 169) = 0.70414 tan(2x) = (1 / 169) = 0.00592 - - - - - - - - - - - - ] ]
There is Hope|Points 113|

Question
Asked 12/15/2013 1:16:13 PM
Updated 6/28/2014 9:20:27 AM
1 Answer/Comment
This conversation has been flagged as incorrect.
Flagged by yeswey [6/28/2014 9:20:01 AM]
New answers
Rating
3
The equation in slope-intercept form for the line that is parrallel to y=2x+6 and passes through the point (4,-4) is y = 2x - 12
Added 6/28/2014 9:20:27 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [6/28/2014 9:29:57 AM]
Comments

There are no comments.

Add an answer or comment
Log in or sign up first.
27,672,622
questions answered
GET
Answers.
GET THE APP.
weegy*
*
Get answers from Weegy and a team of really smart live experts.
Popular Conversations
What is an asphalt?
11/6/2018 12:43:46 AM| 3 Answers
The chief builder of the Muslim Empire was Suleiman. A. True B. ...
Weegy: The chief builder of the Muslim Empire was Suleiman. This is true.
11/6/2018 6:09:40 PM| 3 Answers
Narcotics are a classification of drugs from this type of plant.
Weegy: Narcotics are pain killing drugs. User: Another term for this classification of drugs is sedatives.
11/7/2018 9:03:53 AM| 2 Answers
Which Ottoman ruler added Baghdad to Ottoman territory? A. ...
Weegy: Suleyman was the Ottoman ruler who added Baghdad to Ottoman territory. User: How were non-Muslims treated in ...
11/7/2018 3:18:27 PM| 2 Answers
What was used to guide the flow of the canal water over rivers?
Weegy: Both navigations and canals use engineered structures ...
11/7/2018 3:33:43 PM| 2 Answers
15.   Shakespeare's tragedies tend to include a/an        A. ...
Weegy: Shakespeare's comedies tend to end with a marriage. User: Regarding the nature of drama, which statement is ...
11/8/2018 11:06:37 AM| 2 Answers
Which of the following describes a nuclear stress test? A. A ...
Weegy: Chronic bronchitis is the patient diagnosis which indicates that there's a hypersecretion of mucus and chronic ...
11/10/2018 4:20:04 PM| 2 Answers
S
L
R
Points 533 [Total 1254] Ratings 3 Comments 503 Invitations 0 Online
S
L
R
P
R
P
R
P
R
P
R
P
Points 524 [Total 2632] Ratings 2 Comments 504 Invitations 0 Offline
S
L
Points 479 [Total 479] Ratings 0 Comments 479 Invitations 0 Online
S
Points 37 [Total 37] Ratings 0 Comments 37 Invitations 0 Offline
S
Points 26 [Total 26] Ratings 0 Comments 26 Invitations 0 Offline
S
Points 20 [Total 20] Ratings 0 Comments 0 Invitations 2 Offline
S
Points 19 [Total 34] Ratings 1 Comments 9 Invitations 0 Offline
S
Points 13 [Total 13] Ratings 0 Comments 3 Invitations 1 Offline
S
R
L
R
P
R
P
R
R
R
R
P
R
P
Points 1 [Total 2009] Ratings 0 Comments 1 Invitations 0 Offline
S
Points 1 [Total 1] Ratings 0 Comments 1 Invitations 0 Offline
* Excludes moderators and previous
winners (Include)
Home | Contact | Blog | About | Terms | Privacy | © Purple Inc.