IS ____ LINEAR
Is f(x)=x^2+3 linear?
No, it isn't at all!
y=4/5x+4
The Y-intercept is 4
If the y-value goes up and the x-value goes down, what is the association?
Negative
Can there be no association?
Yes
Cheeseburger?
πͺπ½ πππΆπ½
is f(x)=x+3 linear.
yes, Yes, YES! It is, it really is!
y=35/3+7
7
If the x-value goes down and the y-value goes down, what is the association?
the association is positive.
To show the relationship of multiple points.
ladeedoodle
leeleedum
is f(x)= 4+x^3 linear
It isn't linear at all!
y=4/9+5
5
If the x-value goes up and the y-value goes down what is the association.
The association is negative.
Does a trend line need to pass through all points in a scatter plot?
No, it just has to be between the points to show the average.
schoondle spoodle
blurper
Is f(x)=x-4 linear?
6
In a positive association, how do the x and y values change?
They move the same way.
What determines an association?
can
do
Is f(x)=x5+4^2 linear
Obviously not
y=2/21*(-6x)+21
21
In a negative association, how do the x-values and y-values change?
The x and y values go different ways.
The average of a scatter plot.
diddly plooplier
plop