A classmate thinks that solving a system by graphing gives an exact answer when the lines appear to cross at a grid point, but only an approximate answer when they don't. Explain why this isn't true.

Respuesta :

This isn't true because the exact answer of a system is where the lines cross each other, not where they cross a grid.

Answer:

This is not true because sometimes the exact answer is a decimal like (3.5,1.5)