the whole sum is messed up
* * * * *
You get a line of "best fit" whose gradient is zero. The correlation coefficient and the covariance are statistically no different from zero.
Is there a specific equation involved here? Otherwise, X and Y are unrelated. It's possible for Y to stay the same no matter what you do with X. In this case, when graphing it, you get a line going straight across. Every equation is different, and will cause Y to do different things when you change X.
If you mean: y = x and y = x+2 then the lines are then parallel to each
As y gets, smaller, x gets larger.
y = 0
The y-intercept happens when x = 0, so if y = 2x - 5, then the y-intercept happens when y = 0 - 5, or -5.
Because the inverse of a function is what happens when you replace x with y and y with x.
The line y = x will shift up when you add a value to x and shift down when you subtract a value from x.
Because the inverse of a function is what happens when you replace x with y and y with x.
y = 100 - 4x ( a ) Find the value of y when x = 20.
then the slope is x=y. there is no slope.
7
The graph shifts downward (negative y) by 9 units.