7x + 8y
7y+3x-21 =0 7y = -3x+21 y = -3/7x+3 The y intercept is 3
The lines intersect at (3, 5)
y = 6/7x+3 General form of the line equation: 6x -7y+21 = 0
(9,6)
8x - 7y = 7 (A)7x + 8y = 8 (B)7*(A): 56x - 49y = 498*(B): 56x + 64y = 648*(B)-7*(A): (64+49)*y = 64-49=> 113y = 15=> y = 15/113
7x + 8y
7y+3x-21 =0 7y = -3x+21 y = -3/7x+3 The y intercept is 3
The lines intersect at (3, 5)
y = 6/7x+3 General form of the line equation: 6x -7y+21 = 0
(7,12)
(9,6)
7x-y-28 = 0
(x - y + 7)(x + y)
Y= 6/7x +6
the answer to this problem is -2x^2y^2
14x+7y=-9