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Yuliya22 [10]
2 years ago
7

Can someone help me with these problems please!

Mathematics
2 answers:
kolbaska11 [484]2 years ago
8 0
What are you doing to these equations?
lana66690 [7]2 years ago
4 0
The second is this I hope it helps

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Write an equation in point-slope form, y – y1 = m(x – x1), of the line through points (9, –2) and (10, 2). Use (9, –2) as the po
True [87]
\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~ 9 &,& -2~) 
%  (c,d)
&&(~ 10 &,& 2~)
\end{array}
\\\\\\
% slope  = m
slope =  m\implies 
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{2-(-2)}{10-9}\implies \cfrac{2+2}{10-9}\implies \cfrac{4}{1}\implies 4
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-(-2)=4(x-9)\implies y+2=4(x-9)
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3 years ago
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Ann [662]

Answer:

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Step-by-step explanation:

It may sound exaggerated but it can be.

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8x-9y=19 4x+y=-7 How Do I Do This Type Of Math
astraxan [27]
8x-9y=19
4x+y=-7
 Multiply all terms of the 2nd by (9)===>  36x + 9y= 63

add (36x  9y=  63) to the 1st ===> 44x+0y = -44 ===> x=-1
replace x by this value in any of the equation & you'll get y=-3
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