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A line passes through the points A(–1, 7) and B(1, 3). b Write an equation of this line.

Sagot :

Sam3531idn
A (-1,7) B(1,3)

AB= y2-y1 / x2 - x1
= 3 - 7/ -1 -1
= -4/ -2
= 2x

Y= mx + c
3= 2(1) + c
3=2 + c
3-2=c
1=c

Equation of line = y= 2x + 1
Mydude2130idn

Answer:

-2

Step-by-step explanation:

Formula

([tex]y^{2}[/tex]-[tex]y^{1}[/tex]) ÷ ([tex]x^{2} - x^{1}[/tex])

So,  (3 - 7) / (1 - (-1)) = -4/2

-4/2 = -2/1 = -2

I really hope this helps

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