Chapter 5: Graphs & Functions Section 4 – Writing a Function Rule

Objectives I can write a function rule given a table or a “real- life” situation

Notes Part 1: Writing a Function Rule RELATIONSHIP #1: Linear (y = mx + b) First difference is the same- this is the slope!! Find where x = 0 to get y-intercept

Notes Part 1: Writing a Function Rule RELATIONSHIP #2: Quadratic (y = x²) Second difference is the same!!

Part 1: Writing a Function Rule

Part 1: Writing a Function Rule

CAN YOU?? PROVE IT!! I can write a function rule given a table or a “real- life” situation