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3 years ago

Use the given conditions to write an equation for the line in point-slope form and general form.

Mathematics

1 answer:

Tatiana [17]3 years ago

5 0

Answer:

y=4/7 x +99/7 general form

y2-y1=m(x2-x1) =y2-9=4/7(x-(-9)

Step-by-step explanation:

4x - 7y - 2

slope=4/7 and b=-2/7

y=4/7 x-2/7

the slopes of parallel lines are equal. Note that two lines are parallel if their slopes are equal and they have different y-intercepts

point slope form : y2-y1=m(x2-x1) =y2-9=m(x-(-9)

y-9=4/7(x+9)

y=4/7x+36/7+9

y=4/7 x +99/7 general form

I hope it works

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Answer:

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3 years ago

For the polynomial below, -2 is a zero.

Harlamova29_29 [7]

Answer:

Step-by-step explanation:

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by synthetic division

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|----------------

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$\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
% (a,b)
&&(~ 4 &,& 3~) 
% (c,d)
&&(~ -4 &,& -1~)
\end{array}
\\\\\\
% slope = m
slope = m\implies 
\cfrac{\stackrel{rise}{ y_2- y_1}}{\stackrel{run}{ x_2- x_1}}\implies \cfrac{-1-3}{-4-4}\implies \cfrac{-4}{-8}\implies \cfrac{1}{2}
\\\\\\
% point-slope intercept
\stackrel{\textit{point-slope form}}{y- y_1= m(x- x_1)}\implies y-3=\cfrac{1}{2}(x-4)
\\\\\\
y-3=\cfrac{1}{2}x-2\implies y=\cfrac{1}{2}x+1$

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