1. Algebra 1
7.1 Solving Linear Systems by Graphing
What is a “system?”
What is a “system of equations?”
• A set of ______________________________.
• A ________________________ is an ordered pair, or a _________________, that
satisfies ________________ equations.
Solving a system of linear equations by graphing.
1. Write each equation in _______________________________ form.
2. _________________ both equations.
3. Estimate the _____________________________ of the point of
intersection.
4. Check the coordinates algebraically by substituting into the original
equations.
EX1: Solve the system graphically. Check the solution algebraically.
x + ψ= −2
2 ξ − 3ψ= −9
HW p. 401 (12 – 30 even)