In the least-squares line  ŷ = 5 − 4x,  what is the value of the slope?

Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter4: Graphs
Section4.3: Graph With Intercepts
Problem 4.40TI: Find the intercepts of x+4y=8 .
Question

In the least-squares line 
ŷ = 5 − 4x,
 what is the value of the slope? 

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