gdaniels gdaniels

15-06-2017
Mathematics

contestada

f the coordinates of A and B are (-10, -3) and (7, 14), respectively, the x- intercept of is

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ghanami ghanami

15-06-2017

Hello : let A(-10,-3) B(7,14)
the slope is : (YB - YA)/(XB -XA)
(14+3)/17) = 1
an equation is : y=ax+b a is a slope

y = x +b

the line F through point B(7,14) : 14 =7+b
b = 7
the equation is : y =X+7

the x- intercept of F when y=0 : x+7 =0 so : x = - 7

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