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
LenKa [72]
3 years ago
8

How do you graph a linear equation?For example, -18x+9y=72

Mathematics
2 answers:
nikdorinn [45]3 years ago
4 0
Basically with the example you have you need to have the x and y variables on different sides. 
Equation: 
-18x+9y=72    (now you want to add 18x on both sides)
<u>+18x          +18x
</u><u>9y=72+18x </u>   (next you divide 9 to both sides to get x and y alone) 
      9 
y=8+2x (now that you have the x and y alone this is the final equation) 

On the graph you want to put a dot on 8 since it's the y-intercept or the starting point of the equation. After that you want to add 2 every time you go by 1 on the x-axis. I have a picture of a graph...

<em>I hope this help you out :D</em>




EleoNora [17]3 years ago
3 0

Answer:

The graph of given equation is shown below.

Step-by-step explanation:

We need to draw the graph of linear equation.

Let as consider a linear equation.

-18x+9y=72

First we need to find any two points on the line. So, will find x and y-intercept of the line.

Substitute x=0 in the given equation to find the y-intercept.

-18(0)+9y=72

9y=72

Divide both sides by 9.

y=8

⇒ y-intercept of the line is 8.

Substitute y=0 in the given equation to find the x-intercept.

-18x+9(0)=72

-18=72

Divide both sides by -18.

y=-4

⇒ x-intercept of the line is -4.

Now, plot these two points (0,8) and (-4,0) on a coordinate plane and connect them by a straight line.

Therefore, the graph of given equation is shown below.

You might be interested in
If the Humidity of grass is 85% and the humidity of Hay is 10%. How many Tonnes of Hay can we get From 15Tonnes of Grass.
Sveta_85 [38]

We have to find 10% of 15tonnes

\\ \bull\tt\looparrowright 10\%\:of\:15

\\ \bull\tt\looparrowright \dfrac{10}{100}\times 15

\\ \bull\tt\looparrowright \dfrac{150}{100}

\\ \bull\tt\looparrowright 1.5\;tonnes

5 0
3 years ago
Read 2 more answers
HELPPP PLZZZZZZZZZZZZZZZZ REAL QUICK
Sergio [31]

Answer:

Step-by-step explanation:

3 0
3 years ago
Pleas help ill appreciate it asap pleas
Mashcka [7]

Answer:

I think it would be 3y+3y-12 because 6y=3y+3y

Step-by-step explanation:


4 0
3 years ago
Read 2 more answers
PLEASE CHECK MY ANSWERS (PART 2)
Anna007 [38]
3 is incorrect, should be 28.9

16^2 + 18^2 = EG^2
256 + 324
580 = EG^2
EG ≈ 24.08

16^2 + 24.08^2 = AG^2
256 + 580 = AG^2
836 = AG^2
AG ≈ 28.9

5 is incorrect:

The base is 8.
Draw an altitude the base.
Since the triangle is isoceles, it divides the base in half.
Half of that base is 4.
Two right triangles have been formed with one leg 4 and hypotenuse 8.
4^2 + b^2 = 8^2
16 + b^2 = 64
b^2 = 48
b ≈ 6.93

The height of the triangle is 6.93, the base is 8.
A = bh/2 = 8*6.93/2 ≈ 27.7 ≈ 28



3 0
3 years ago
ASAP please help with math thanks
fomenos

Answer:

2: 6,8

Step-by-step explanation:

2) Look at the range from 6-8 then look at the frequency. The frequency is the highest so that is the most frequent range that they scored in.

I apologise for only answering one question. I don't have access to paper rn and this is hard stuff to do in my head.

5 0
3 years ago
Other questions:
  • abbi invested $1,000 in a certificate of deposit with a simple interest rate of 6% find the interest earned in 4 years. then fin
    8·2 answers
  • Initial Knowledge Check
    14·1 answer
  • Melissa has enough paint to cover an area of 250 square feet. She want to paint two walls. The rectangular wall is 9 feet high a
    6·2 answers
  • A randomly selected sample of college basketball players has the following heights in inches. See Attached Excel for Data. Compu
    13·1 answer
  • Y^3 +3y^2 -10y-24=0 is y=-2
    14·1 answer
  • How do you solvethis equation: -3/4(x-8)=1/2x-9
    9·1 answer
  • Please help quick!!
    13·2 answers
  • What is the square root if 144000000?<br>step by step pls​
    6·1 answer
  • Rotate point B about point F 288 degrees clockwise
    15·1 answer
  • If you want to connect your home network to the internet, you will need a ________ in addition to a modem.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!