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love history [14]
3 years ago
11

What is the slope (2,-9) (-2,3)

Mathematics
2 answers:
liberstina [14]3 years ago
8 0

Answer:

-3

Step-by-step explanation:

-12/4=-3

I got -12 but subtracting two y values, and got 4 by subtracting two x values.

Formula to find slope is= change of y/ change of x=

-12/4= 3

Schach [20]3 years ago
4 0

Answer:

\displaystyle m=-3

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>Algebra I</u>

  • Slope Formula: \displaystyle m=\frac{y_2-y_1}{x_2-x_1}

Step-by-step explanation:

<u>Step 1: Define</u>

Point (2, -9)

Point (-2, 3)

<u>Step 2: Find slope </u><em><u>m</u></em>

Simply plug in the 2 coordinates into the slope formula to find slope<em> m</em>

  1. Substitute [SF]:                     \displaystyle m=\frac{3+9}{-2-2}
  2. [Frac] Add/Subtract:             \displaystyle m=\frac{12}{-4}
  3. [Frac] Divide:                        \displaystyle m=-3
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Create an equivalent system of these equations and test your solution <br> x + y = 1<br> x 3y =9
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An equvilent equation
remember you can do anything to an equation as long asyou do it to both sides


assuming yo have
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ok, solve initial

x+y=1
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multiply first equation by -1 and add to 2nd equation


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0x-4y=8

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divide both sides by -4
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sub back
x+y=1
x-2=1
add 2
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if we test it in other one

2x+2y=2
2(3)+2(-2)=2
6-4=2
2=2
yep

2x-6y=18
2(3)-6(-2)=18
6+12=18
18=18
yep


solution is (3,-2)
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