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01-12-2020
Mathematics

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Write the equation of the line that goes through (-4,13) and (8,49).

Respuesta :

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01-12-2020

Answer:

y=3x +25

Step-by-step explanation:

First calculate the slope:

m = (y1 - y2)/(x1-x2)

m = (49 - 13)/(8-(-4))

m= 36/12 = 3

so we have

y = 3x + b

subtitute a point:

49=3(8) + b

b=25

the equation is y=3x +25

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