5.1 & 5.2 Review (8th)

5.1 & 5.2 Review (8th)

Graphing & Substitution Review

5.1 Solving Linear Equations Graphing Method

Put both equations in slope-intercept form (y=mx+b) and graph

or

Solve for x and y intercepts and graph

The solution is where the two lines intersect (cross).

5.2 Solving Linear Equations Substitution Method

1. Solve one of the equations for x or y

2. Substitute

3. Distributive (if necessary)

4. Combine like terms

5. Solve the two-step equation

6. Plug in to find the other variable