1. Warm Up
Pancho and Maria visit a candy store, Pancho buys three candy bars and 4 fruit roll-ups for $ Maria also buys three candy bars but can only afford an additional fruit roll-up. Her purchase cost was $ What is the cost of a candy bar and a fruit roll-up individually?
Farmer John noticed that his chickens were loose and were running around with the cows in the cow pen. There were 100 heads and 270 feet. How many chickens did he have and how many cows?

2. Solving linear systems
Graphing
Elimination
substitution

3. Infinitely many solutions No solution One solution

4. Solve by substitution 1) 2)

5. Solve by Substitution -2x + y = -1 4x + 2y = 12

6. Solve by Substitution

9. HW 2.8 #1-12