Answer: these are the points (-2,4) (3,6)
Step-by-step explanation:
4b² + 8b + 3 = 0
4b² + 2b + 6b + 3 = 0
2b(2b + 1) + 3(2b + 1) = 0
(2b + 3)(2b + 1) = 0
b = -1/2 or b = -3/2
3c = 12.69
where c = # of greeting cars
ok so you need to take the 4x + 6y - 4 and make it (4*2 )+ (6*-4)- 4. Now solve is and it equals -20. So, your answer is -20.
Hope this was helpful!