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Find an equation of the line passing through the pair of points (5,4) and (4,5). Write in slope intercept form

Respuesta :

[tex]\text{Slope =} \dfrac{Y_2-Y_1}{X_2 - X_1} [/tex]

[tex]\text{Slope =} \dfrac{5-4}{4-5} = -1[/tex]

Plug slope in the general equation : y = mx + b

y = -x + b

5 = -4 + b

b = 9

Plug y-intercept int the general equation:

y = -x + 9

Answer: y = -x + 9

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