The system of equations y = 4x + 3 and y = 4x - 3 has a. exactly one solution b. no solution c. infinitely many solutions d. exactly two solutions

C) Infinitely many solutions.

any real number you put as (x) will give you a different input on both playing fields of these two Linear functions.

You can put 4(1)+ 3 = 7 You can do 4(-1) + 3 = -1

every new input gives you a new output. This would also mean these two are also functions, fun fact.