Question

Which of the following systems of equations would have infinitely many solutions?

y=4x-1 and 4x+5
y=x and y=0
y=2x-1 and y=2x-1
y=3x-2 and y=2x-3​

Answer 1

9514 1404 393

Answer:

(c) y = 2x-1 and y = 2x-1

Explanation:

A system of equations in which both equations describe the same line will have infinitely many solutions (all points on that line).

The same line is (obviously) described by the (identical) equations ...

y = 2x-1 and y = 2x-1