ramanwaterfalls8378 ramanwaterfalls8378
  • 04-07-2017
  • Mathematics
contestada

For the straight line defined by the points (2, 55) and (4, 91), determine the slope and y-intercept. do not round the answers.

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ghanami
ghanami ghanami
  • 04-07-2017
 

Hello : let  A(2,55)    B(4,91)
the slope is :   (YB - YA)/(XB -XA)
(91-55)/(4-2)  = 36/2 =18
an equation is : y-55 = 18(x-2)

 y-intercept when : x = 0  :  y - 55 = 18(0-2)
y-55 = -36
y = 55-36 = 19
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