The first equation of a linear system is 2x + 3y = 52. Choose a second equation to form a linear system with infinite solutions.
a) 2x + 3y = -260
b) -10x - 15y = -260
c) -10x + 3y = -260
d) -10x + 3y = 255

Question

The first equation of a linear system is 2x + 3y = 52. Choose a second equation to form a linear system with infinite solutions. 
a) 2x + 3y = -260
b) -10x - 15y = -260
c) -10x + 3y = -260
d) -10x + 3y = 255

anonymous · Answer

The answer is b, the answer is b because in order the it to be infinite solutions the equations have to be similar. So to solve it check the ratio, b is just the original equation multiplied by -5