Question

y=3x+21 which ordered pair is a solution to the equation? A (-2,15) B (0,-7) C (15,36) D(24,1)

Answer 1

Answer:

Option A = (-2,15)

Step-by-step explanation:

From the ordered pair (-2,15),

x = -2 , y = 15

Substituting these values in the equation,

=> 15 = 3(-2) + 21

=> 15 = -6 + 21

=> 15 = 15

therefore, LHS = RHS

And (-2,15) is the solution for y = 3x + 12