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azamat
3 years ago
5

Find the slope of the line that contains these points (-2,5) (-4,11)

Mathematics
2 answers:
adell [148]3 years ago
4 0
Here is the formula and solution.

nevsk [136]3 years ago
3 0
The first thing you have to do is:

subtract: 11-5

Then subtract: -4-(-2)
 
then you put it as a fraction:  6/-2 or -3

That -3 would be considered the slope.

So now you have: y=-3x+ b

So what you have to do is plug in one of the points into the equation to find out what b is.

For example:  11 = -3(-4) + b 
                                   11=12 + b
                                    -12   -12
                                        b = -1
So the answer is: y = -3x -1

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boyakko [2]

Answer:

\boxed{\sf \ \ 9x^2-18x-7 \ \  divided \ by \ (3x+1) \ is \ (3x-7) \ }

Step-by-step explanation:

Hello,

let's find a and b reals so that

9x^2-18x-7=(3x+1)(ax+b)

(3x+1)(ax+b)=3ax^2+(3b+a)x+b

we identify the terms in x^2

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we identify the terms in x

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we identify the constant terms

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so ti goes with a = 9/3 = 3, b = -7

so we can write

9x^2-18x-7=(3x+1)(3x-7)

so 9x^2-18x-7 \ divided \ by \ (3x+1) \ is \ (3x-7)

hope this helps

8 0
3 years ago
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Step-by-step explanation:

6 0
2 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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