Answer:
AN: y = 2/3x + 19/3
NT: y = -2/9x + 17/9
AT: y = -2+ + 9
Explanation:
AN: (1,7), (-5,3)
m = (y-y)/x-x)
m = (3-7)/(-5-1) = -4/-6 = 2/3
y-int. = 7 - (2/3 * 1) = 19/3
NT: (4,1), (-5,3)
Slope = (3-1)/(-5-4) = - 2/9
y-int. 1 - (-2/9 * 4) = 17/9
AT: (1,7),(4,1)
Slope = (1-7)/(4-1) = -6/3 = -2
Y-int. = 1 - (-2)*4 = 9