We have to identify the equation of the trend line.
We can see that the trend is decreasing, so the slope has to be negative. Knowing that, we can discard options A and D because they have positive slopes.
The y-intercept is y = 22, but both options B and C have the same y-intercept.
We can then look at the value of the slope: we can see that y decreases 2 units per 3 units of increase of x. This means that we can express the slope as:
[tex]m=\frac{\Delta y}{\Delta x}=\frac{-2}{3}=-\frac{2}{3}[/tex]
Then, the equation of the trend line is:
[tex]y=-\frac{2}{3}x+22[/tex]
Answer: B. y= -2/3x + 22
