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
pshichka [43]
3 years ago
8

Solve by graphing.

Mathematics
1 answer:
melisa1 [442]3 years ago
7 0

Given:

The given system of equations is:

2x+y=1

x-2y=8

To find:

The solution to this system of equations by graphing.

Solution:

We have,

2x+y=1

x-2y=8

The table of values for first equation is:

x       y

0      1

1      -1

Plot the points (0,1) and (1,-1) on a coordinate plane and connect them a straight line.

The table of values for second equation is:

x       y

0      -4

2      -3

Plot the points (0,-4) and (2,-3) on a coordinate plane and connect them a straight line.

The graphs of given equations are shown in the below figure.

From the below figure, it is clear that the lines intersect each other at point (2,-3). So, the solution of the given system of equations is (2,-3).

Therefore, the solution to this system of equations is:

x-coordinate: 2

y-coordinate: -3

You might be interested in
4 cups equals how many ounces
DanielleElmas [232]
4 cups equals 33.307 oz

5 0
3 years ago
Read 2 more answers
Are used car was purchased for 7,800 one year later it was worth 6,400 what is the percentage depreciation
sashaice [31]

Answer:

Step-by-step explanatio 16%

7 0
3 years ago
What is the distance between the points (21 , 13) and (3 , 13) in the coordinate plane?
Oxana [17]

Answer:

\displaystyle d = 18

General Formulas and Concepts:

<u>Pre-Algebra</u>

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right<u> </u>

<u>Algebra I</u>

  • Coordinates (x, y)

<u>Algebra II</u>

  • Distance Formula: \displaystyle d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify</em>

Point (21, 13)

Point (3, 13)

<u>Step 2: Find distance </u><em><u>d</u></em>

Simply plug in the 2 coordinates into the distance formula to find distance <em>d</em>

  1. Substitute in points [Distance Formula]:                                                         \displaystyle d = \sqrt{(3-21)^2+(13-13)^2}
  2. [√Radical] (Parenthesis) Subtract:                                                                   \displaystyle d = \sqrt{(-18)^2+(0)^2}
  3. [√Radical] Evaluate exponents:                                                                       \displaystyle d = \sqrt{324+0}
  4. [√Radical] Add:                                                                                                 \displaystyle d = \sqrt{324}
  5. [√Radical] Evaluate:                                                                                          \displaystyle d = 18
5 0
3 years ago
Juan bought a piece of lumberthat is 20 feet long.
Semmy [17]

Answer:mutiply not sure

Step-by-step explanation:

7 0
2 years ago
A rectangle is reduced by a scale factor of One-fourth.
Dvinal [7]

The ratio of the area of the smaller rectangle to the area of the larger rectangle is 1:16

Area of a rectangle

The formula for calculating the area of a rectangle is expressed as:

A = length * width

For the large triangle

Area = 16 * 12

Area of large triangle = 192 square units

For the smaller rectangle

Area = 4 * 3

Area. of small rectangle = 12 square units

Ratio = 12/192 = 1:16

Hence the ratio of the area of the smaller rectangle to the area of the larger rectangle is 1:16

Learn more on area of rectangle here: brainly.com/question/25292087

#SPJ1

6 0
2 years ago
Other questions:
  • Write &gt;,&lt; or = explain your choice
    12·1 answer
  • An astronaut drops a rock off the edge of a cliff on the Moon.
    13·1 answer
  • There are three concerts at lakeside one has 953 as attendance and the other 2 have 1100 as the attendance what is the average o
    11·1 answer
  • A giraffe's height is 5 meters 40 centimeters. <br><br> How tall is the giraffe in millimeters?
    14·1 answer
  • The Reds and the Cubs are playing 3 games. In each game the probability that the Reds win is 0.54. The probability of the Reds w
    9·1 answer
  • Find geometric mean between 2 and 8​
    7·1 answer
  • Pals helpppp
    9·1 answer
  • AB intersects CD at point E. What is the value of X in degrees?​
    10·1 answer
  • Solve the inequality.<br> 5(w - 3) &lt; 5w + 20
    14·2 answers
  • 9-3 divided by 1/3 + 1 =
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!