Question

if you solve an equation by graphing each side as a separate line, which of the following corresponds to the solution of the equation?

Answer 1

The correct answer is:

The solution will be the intersection point of the lines formed by each side of the equation.

Explanation:

Treating each side of an equation as a separate line and graphing it is treating it as a system of equations. In a system of equations, the solution is the set of coordinates that work for both equations. This will be true here as well; the solution to the equation will be the value that works for both sides of the equation. This will be represented by the intersection point.

Answer 2

You gave no choices. / / / This may surprise you . . . An EQUATION says that the two sides are EQUAL. So anything you do with either side produces the same result as doing the same thing to the other side. (We always use this important law when we SOLVE equations!)