Answer:
3
Step-by-step explanation:
We have given
,
and SP =30
We have to find the slope for regression on Y from X
The slope on Y from X is given by 
As we have given the value of SP =30 and value of 
So slope for regression will be
Answer/Step-by-step explanation:
✍️Slope of the line using two points, (2, 2) and (6, 10),

✍️To find the equation of the line in slope-intercept form, we need to find the y-intercept (b).
Substitute x = 2, y = 2, and m = 2 in y = mx + b, and solve for b.
2 = (2)(2) + b
2 = 4 + b
2 - 4 = b
-2 = b
b = -2
Substitute m = 2 and b = -2 in y = mx + b.
✅The equation would be:


✍️To find the value of a, plug in (a, 8) as (x, y) into the equation of the line.


Add 2 to both sides


Divide both sides by 2


a = 5
✍️To find the value of b, plug in (4, b) as (x, y) into the equation of the line.



Answer:
D
Step-by-step explanation:
Hope you get a 100% on the test
disclaimer: this is just so u can mark that person brainliest
Answer:
Zero solutions.
Step-by-step explanation:
4x - 8 - 4x = 9
-8 = 9
No solutions.
Answer:
10
Step-by-step explanation: