Chapter Sections 2.4-2.5 Flashcards
0
Q
What is the def of direct variation?
A
Y varies directly with X
Y is directly proportional to x
1
Q
What is the equation to direct variation?
A
Y=Kx
2
Q
Notes
A
- Neg sign inside parenthesis or square root change either going left or right.
- neg sign outside parenthesis or square root changes either going down or up
4
Q
What does the correlation coefficient (r) show us
A
It tells us how the line of best fit looks like. The closer absolute value of r to 1 the better line of best fit
