Answer: OPTION A
Step-by-step explanation:
The equation of the line in slope-intercept form is:

Where m is the slope and b the y-intercept.
Solve for y from each equation:

As you can see the slope and the y-intercept of each equation are equal, this means that both are the exact same line. Therefore, you can conclude that the system has infinitely many solutions.
Quantitative. Because they can be counted
Oh god this one got me too it’s 2
Reflecting the x axis, we multiply the y value by -1, getting (7, -3)
Reflecting the y axis, we multiply the x value by -1, getting (-7, 3)