1. 1.8 Quadratic Models Speed (in mi/h)122230 Calories burned152105165 Ex. 1

2. Steps on a TI Calculator 1)Go to STAT and choose Edit 2)Put in your values for L1(x) and L2(y) 3)Go to STAT PLOT 4)Turn PLOT “on” and choose Scatter-Plot 5)Go to STAT and choose CALC 6)Choose the regression (regressions below) that you would like to draw 7)Hit VARS, Y-VARS, ENTER, ENTER 8)To graph, change your window to fit your data LinReg = Linear Regression QuadReg = Quadratic Regression CubicReg = Cubic Regression ExpReg = Exponential Regression PwrReg = Power Regression SinReg = Sine Regression

3. 1.8 Quadratic Models

4. Model a real-world problem with a quadratic function and use the model to find a maximum or a minimum.

6. 1.8 Quadratic Models

7. Table