Maintaining a steady internal environment is known as

Graphical solution: plot both equations on the same axes. The intersection point(s) give the solution. No intersection means no solution; same line means infinite solutions.

Steps: rearrange each equation to y = mx + c form, plot at least two points for each line, draw lines, read coordinates of intersection point.

Verify by substituting back into both original equations. Graphical method gives approximate solutions; algebraic methods (substitution, elimination) give exact answers.