1. Warm Up

2. Power and Radical Functions
Unit 2 Day 1
Power and Radical Functions

4. And now we reflect

5. That’s Odd

6. An Odd Reflection

7. You are faster than the calculator

8. Where negatives are reciprocated

9. A Radical Idea

12. Solving radical Equations
The two most important steps!!!
Isolate the radical
Eliminate the radical
Then solve for x the way you normally would’
Check your x-values to make sure using them as input is valid!

13. Solve the radical equations

14. Power regression
Say you are given a set of data points, and want to know what function defines or represents that data
The data below represents the resting metabolic rate R in kilocalories per day for the mass m in kilograms of several animals
What if we want to determine what the resting metabolic rate for a 60 kg animal would be?

15. Power regression Create a scatter plot of the points
Use the PwrReg function on the graphing calculator to determine a fit for the plotted points
Pay attention to the correlation coefficient
If it looks like a good fit, graph the complete regression.
In the y= menu, enter VARS, Statistics, EQ. Graph the regression and the scatter plot in the same window
You can then use the equation to predict future f(x) values (using the CALC feature)

16. Now let’s try it
1554
So, what would the resting metabolic rate for an animal weighing 60 kg be?