Hi,
x- intercept (-6,0) When y = 0 ⇒ -4x = 24, x = -6
y-intercept (0,-4) When x = 0 ⇒ -6y = 24, y = -4
As to putting it in y = mx + b form (not necessary, but good practice)
-4x - 6y = 24
+4x +4x
-6y = 24 + 4x ||Good Work
|| Dividing both sides by -6
Note: this generates Pts (0,-4) and (-6,0) as well, naturally