point-slope form
(7, 2) (2, 12)
y-2=-2(x-7)
y= 2x+9
x=8
y= 25
(5, 6) (10, -1)
-17/5
slope: 3 y-intercept: -4
y=3x-4
(-4, -1) (6,-7)
y+1=-3/5(x+4)
y= 3x-4
y= 27
x= 10
(3,2) (5,9)
7/2
slope: -1/7
y-intercept: 3 5/7
y= -1/7x +3 5/7
(5, 6) (10, -1)
y-6= -17/5 (x-5)
2x-3x=20
y= 6
x= 19
(8, 2) (10, 9)
2
slope: 4
y-intercept: 8
y=4x+8
(3, 2) (5, 9)
y-2= 7/2(x-3)
4y=5x+2
x=6
y=8
(7, 5) (13, 8)
2
slope: 8
y-intercept: 9
y=8x+9