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13-06-2017
Mathematics

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Line QR goes through points Q(0,1) and R(2,7). Which equation represents line QR?

Respuesta :

ghanami ghanami

13-06-2017

Hello : let Q(0,1) R(2,7)
the slope is : (YR - YQ)/(XR -XQ)
(7-1)/(2-0) = 3
an equation is : y=ax+b a is a slope

y = 3X +b

the line through point Q(0,1) : 1= 3(0)+b
b = 1
the equation is : y =3x+1

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