Question

Which graph shows a system with an infinite number of solutions?

Answer 1

The answer would be Graph C,

Graph A only has one solution which is where they intersect.

Graph B has no solution because they don't intersect, the lines are parallel to each other. If lines are parallel they don't have a solution.

However, Graph C the lines touch forever, as long as one of those lines don't curve they have an infinite number of solutions.

Answer 2

Graph A shows a single solution where the two lines cross paths. Graph B shows a case where there are no solutions as the lines will never touch. Graph C is the correct answer as it shows the two lines constantly intercepting each other, creating an infinite number of solutions.