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
9

Using a sheet of graph paper, solve the following system of equations graphically. Be sure to show any work, use a straight edge

, and be neat. When you are finished, enter the solution set in the box below and turn in your graph paper to your teacher. x + y = 0 x - y + 2 = 0

Mathematics
1 answer:
madam [21]3 years ago
4 0

Answer:

<h2> (-1,1)</h2>

Step-by-step explanation:

Given system is

\left \{ {{x+y=0} \atop {x-y+2=0}} \right.

If we graph, the solution would be the interception point between these two lines, because each linear equation represents a line. The lines are attached.

In the graph, you can observe that the solution is the point (-1,1), that is x = -1 and y = 1.

Now, if we want to solve this system by another method, we can just sum both equations and solve for <em>x</em>

\left \{ {{x+y=0} \atop {x-y+2=0}} \right.

2x+2=0\\x=\frac{-2}{2}=-1

Then, we replace this value in one equation to find the other value

x+y=0\\-1+y=0\\y=1

Therefore, the solution is (-1,1)

You might be interested in
Simplify (-7/8)(-3/4)
nirvana33 [79]
It would be 21/32. To find this out, you would need to first multiply (-7/8) by (-3/4) which would give you 0.65625. Then look at your answer choices and divide each one ( (/) = same as dividing) until you get 0.65625 as one of the values. 
4 0
3 years ago
Read 2 more answers
many trees have concentric rings that can be counted to determine the trees age. each ring represents one years growth. a maple
igomit [66]

Answer:

adout 53 Years old

Step-by-step explanation:

2. = 6=12=32. 32/2= 16

5.3=16=32= 16/3=5.333...

5.3x10=S3.3

so adout 53 Years old

8 0
2 years ago
Tell me the answer and help me explain please
DENIUS [597]

Answer:

The answer is 9/10

Step-by-step explanation:

8/10 is the same thing as ⅘, ⅘ is just simplified

⅖ is less than ⅘ so it would come before c

6/5 is more than 1 so it wouldn’t be on that number line.

6 0
2 years ago
Read 2 more answers
Keith exercises x hours a week. Troy exercises three hours less than Keith and Joe exercises two times more than Troy. Which exp
muminat
If you would like to know which expression represents the amount of time Joe exercises, you can calculate this using the following steps:

Keith ... x hours a week
Troy ... three hours less than Keith: x - 3
Joe ... two times more than Troy: 2 * (x - 3)

The correct result would be D) 2 * (x - 3).
7 0
2 years ago
Read 2 more answers
What is the beat estimate for the quotient? 591.3 device by 29
Sedbober [7]
Hi there!

To estimate, we can round:

591.3 is approximately 600
29 is approximately 30

Now, we divide:

600 / 30 = 20

Hope this helps!
6 0
3 years ago
Other questions:
  • What is the value of x?<br> sin(x + 22)° = cos(2x - 7)º
    12·2 answers
  • A rectangle is 12 inches long and 7 inches wide. What is the area of the rectangle and square centimeters?
    5·1 answer
  • Plz answer it........
    5·2 answers
  • Write an equation in point-slope form of the line that passes through the point (2,−8) and has a slope of 4.
    5·1 answer
  • Beethoven wrote 9 symphonies, Mozart wrote 27 piano concertos, and Schubert wrote 15 string quartets. (i) If a university radio
    10·1 answer
  • 35 is a factor, multiple or factor pair of 7
    6·2 answers
  • Find the approximate area of a circle with radius equal to 8 ft. (Use = 3.14.)
    7·1 answer
  • Draw and label tape diagrams for the situation described: A recipe calls for 2 cupsof sugar for every 3 cups of flour.
    14·1 answer
  • Expand and simplify: (2x − 5y) (x + 3y)
    11·1 answer
  • The area of this rectangle is 8cm2<br> (3x + 1) cm<br> (2x + 5) cm<br> Work out the value of x
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!