Find the unit tangent and unit normal vectors 
and 
for the curve C defined by 
Sketch the graph of C, and show 
and 
for 
Definitions:
Estimated Regression Equation
A formula that models the relationship between one or more independent variables and a dependent variable.
Yearly Income
The total amount of money earned by an individual or entity in one calendar year from all sources before any deductions.
SSE
Sum of Squares due to Error, a measure indicating the discrepancy between the data and an estimation model.
Estimated Regression Equation
A predictive formula derived from regression analysis to estimate the value of a dependent variable based on independent variables.
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