Question

Can someone help me write equations for each line?

Answer 1

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