1. PIECEWISE FUNCTIONS JOSEPH MONTEMAYOR, XAVIER CONTRERAS, MIROSLAVA JEREZ

2. HOW TO FIGURE OUT PIECEWISE FUNCTIONS F(x) ={3x-5, X > 4 ={x^2, X < 4 1. f(7) 2. f(4) 3. f(-3) (3(7))-5= 16 (4)^2= 16 (-3)^2= -9

3. HOW TO FIGURE OUT PIECEWISE FUNCTIONS CONT. F(x) ={-2|x+1|, x < 1 ={3, 1< x< 3 ={6-2x, x > 3 1. f(10) 2. f(2) 3. f(0) 6-(2(10))= -14 = 3 = -2|0+1|= -2

4. HOW TO GRAPH A FUNCTION? http://www.coolmath.com/algebra/21-advanced-graphing/03-piecewise- functions-01 http://www.coolmath.com/algebra/21-advanced-graphing/03-piecewise- functions-01

5. IS IT A FUNCTION OR NOT? "vertical line test" You can draw a vertical line (straight up & down) anywhere on the graph and if it crosses two or more points on the graph, the graph is not a function, if you can not draw any vertical line so that it touches more than one point, the graph is a function.

6. EXAMPLES Graphing Piecewise Functions.docx Answers and work http://www.coolmath.com/precalculus-review-calculus-intro/precalculus- algebra/07-graphing-piecewise-defined-functions-01