Notice that for the first FIVE equations, the actual lines are in the "slope-intercept form" so it os very easy to give the slope and the intercept for then:
1) m = 3/2 ; b = 4 equation: y = 3/2 x + 4
2) m = 1/2 ; b = -1 equation: y = 1/2 x - 1
3) m = -2/5 ; b = -3 equation: y = -2/5 x - 3
4) m= -5/4 ; b = 1 equation: y = -5/4 x + 1
5) m= 0 ; b = -2 equation: y= 0 x - 2
For the rest, we need to solve for y to make the "m" (slope, and the "b" (intercept) more evident. So we work as follows:
6) x+ y = 3
subtract "x" from both sides
y = - x + 3 therefore m = -1 ; b = 3
7) 4 x - y = - 4
add "y" to both sides
4 x = y - 4
add 4 to both sides
4 x + 4 = y
therefore m = 4 ; b = 4
8) x + 5 y = - 15
subtract x from both sides
5 y = - x - 15
divide everything on both sides by 5 to isolate "y"
y = - 1/5 x - 15/5 = - 1/5 x - 3
therefore m = -1/5 ; b= -3
9) 4 x - 5 y = 10
add 5 y to both sides
4 x = 5 y + 10
subtract 10 from both sides
4 x - 10 = 5 y
divide both sides by 5 to isolate y
4/5 x - 10/5 = y
y = 4/5 x - 2
therefore m= 4/5 ; b = -2
10) 5 x + 2 y = - 8
subtract 5 x from both sides
2 y = - 5 x - 8
divide both sides by 2
y = - 5/2 x - 8/2
y = - 5/2 x - 4
therefore m = - 5/2 ; b = -4
All the equations are in bold