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3 years ago

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

Brackets
Parenthesis
Exponents
Multiplication
Division
Addition
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>

Substitute [SF]: $\displaystyle m=\frac{3+9}{-2-2}$
[Frac] Add/Subtract: $\displaystyle m=\frac{12}{-4}$
[Frac] Divide: $\displaystyle m=-3$

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Answer:

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5 0

3 years ago

Read 2 more answers

What is the slope of the line that passes through the points (2,8) and (12,20)?

Katen [24]

First find slope we use : m=y2-y1/x2-x1

1) 20-8/12-2 = 8/10 in simple form 4/5

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2 years ago

For each expression listed, is it a difference of squares? Explain yes or no and why or why not. Explain in enough detail so the

Harlamova29_29 [7]

<h2>Explanation:</h2><h2></h2>

If we can write a polynomial in the form $a^2-b^2$ , then we can factor it as:

$a^2-b^2=(a-b)(a+b)$

In this problem, we have the following expressions:

$1. \ y^5 - 25 \\ \\ 2. \ 9m^2n^2-121 \\ \\ 3. p^{18} - q^{10} \\ \\ 4. 16r^2 - 27$

For 1 and 4 we can't write this in the form $a^2-b^2$ so this is not a difference of squares.

For 2:

$9m^2n^2-121 =3^2m^2n^2-11^2 \\ \\ =(3mn)^2-11^2 =(3mn-11)(3mn+11)$

So we could write 2 as a difference of squares.

For 3:

$p^{18} - q^{10}=(p^9)^2-(q^5)^2=(p^9-q^5)(p^9+q^5) \\ \\ \\ Remember: \ (a^m)^n=a^{mn}$

So we could write 2 as a difference of squares.

7 0

3 years ago