Respuesta :
this is just a matter of subbing in ur answer choices into the equation to see which ones make the equation true.
4x - 5y = 24
solutions are : (-9,-12), (6,0), (1,-4)
4x - 5y = 24
solutions are : (-9,-12), (6,0), (1,-4)
Plug in each point in the equation.
A. 4x - 5y = 24 (-9, -12)
4(-9) - 5(-12) = 24
-36 + 60 = 24
24 = 24 which is a true statement.
A. works.
B. 4x - 5y = 24 (6, 0)
4(6) - 5(0) = 24
24 - 0 = 24
24 = 24 which is a true statement.
B. works
C. 4x - 5y = 24 (4, 8)
4(4) - 5(8) = 24
16 - 40 = 24
-24 = 24 which is a false statement.
C. does not work.
D. 4x - 5y = 24 (1, -4)
4(1) - 5(-4) = 24
4 + 20 = 24
24 = 24 which is a true statement.
D. works.
Answer: A, B, D
A. 4x - 5y = 24 (-9, -12)
4(-9) - 5(-12) = 24
-36 + 60 = 24
24 = 24 which is a true statement.
A. works.
B. 4x - 5y = 24 (6, 0)
4(6) - 5(0) = 24
24 - 0 = 24
24 = 24 which is a true statement.
B. works
C. 4x - 5y = 24 (4, 8)
4(4) - 5(8) = 24
16 - 40 = 24
-24 = 24 which is a false statement.
C. does not work.
D. 4x - 5y = 24 (1, -4)
4(1) - 5(-4) = 24
4 + 20 = 24
24 = 24 which is a true statement.
D. works.
Answer: A, B, D