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
Semenov [28]
3 years ago
11

Describe and correct the error in writing an equation of the line.

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
8 0

Answer:

the mistake they made was the wrong offset from point (0,0) into the y direction. the incline of the line was correct.

the correct equation is y = 1/2×x - 2, because this line contains both points (4,0) and (0,-2)

Step-by-step explanation:

we are looking for a line equation

y = a×x + b

the 2 points give us 2 equations to solve for the 2 variables a and b :

0 = a×4 + b

-2 = a×0 + b

=> b = -2

=> -b = a×4, => a = -b/4 = 2/4 = 1/2

so, the right equation for the line going through both points is

y = 1/2×x - 2

the difference to the original equation is simply the offset from the x- axis in the y direction.

the original equation would be parallel to the correct equation but hit the y-axis at (0,4) instead of (0,-2), and it would hit the x-axis at (-8,0) instead of (4,0)

You might be interested in
8 is what percent of 64
Pavel [41]
<span>percent of 64 is 8 means number/100 * 64 = 8.n/100 * 64 = 8n/100 = 8/64n = 8*100/64 = 25/2 = 12.58 is 12.5% of 64</span>
3 0
3 years ago
Read 2 more answers
A delivery person uses a service elevator to bring boxes of books up to an office. The delivery person weighs 140 lb and each bo
Stells [14]

Answer:

21 boxes of books

Step-by-step explanation:

guy= 140 lbs

each box= 40lbs                       elevator can only weigh up to 1010

i took 1010- 140 and got 870lbs left for the books

then i took 870 divided by 40 (to see how many boxes of books can be put on the elevator) and got 21.75

so 21 boxes could go on the elevator at a time

5 0
3 years ago
Cardinal Corporation, a calendar year taxpayer, receives dividend income of $250,000 from a corporation in which it holds a 10%
Nitella [24]
I think the answer is a but I’m not for sure
8 0
3 years ago
Which equation matches the graph?<br> PLEASE HELP MEEEE
Rama09 [41]

Answer: Y = 3x - 2

Work: Okay, let's take this step by step. Since the Y - Intercept is -2, put a dot on -2 on the (Y) Line. It also just so happens that the line goes through -2. Now with 3x. 3x is the same thing as 3x / 1. Since three is on the top, you go up three from -2, and then move over one spot because of the 1 (If it was a negative one, you go the opposite direction) Alright, now you see that the line also passes through that point as well, so it has to be y = 3x -2

<em>I hope this helps, and Happy Holidays! :)</em>

8 0
3 years ago
the number 2 in the expression 5+2x is called the coefficient of x how does changing the coefficient to 6 change the meaning of
anzhelika [568]

Answer:

11

Step-by-step explanation:

5plus 2x when x is something 2x is equaling to 6 where as the value of x would be 3...

8 0
2 years ago
Other questions:
  • Two numbers have an average of 17. if one the numbers is 11, what is the other number?
    10·1 answer
  • What is the volume of the largest box that can be made from a square piece of cardboard with side lengths of 24 inches by cuttin
    13·2 answers
  • Answer this and get a free point.
    10·2 answers
  • What is the true solution to 3 l n 2 + l n 8 = 2 l n (4 x)
    15·2 answers
  • Which statement is an example of a transitive relationship
    11·1 answer
  • Solve for e.<br> 9e + 4 = -5e - 14 - 13e
    15·2 answers
  • Write 335 as an improper fraction.
    9·1 answer
  • HW HELP ASAPP<br> +10PTS
    14·1 answer
  • I need help with my math homework <br> 2/3x+17≥29
    13·1 answer
  • What figure is a rotation of figure E?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!