PLEASE HELP ME WITH:
2 answers:
Answer:
The correct option is b.
Step-by-step explanation:
It is given that y-axis of a scatter plot represents the property taxes and x-axis represents the sizes of their homes, in square feet.
The equation of least squares regression line is
We have to find the property taxes to be for a 1300-square-foot home in the area.
Substitute x=1300 in the given equation.
The property taxes for a 1300-square-foot home in the area is $2473.30. Therefore the correct option is b.
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Answer:
x=-1 and y=-5
Step-by-step explanation:
ሰላም!
Given expressions let them given as two equations
- y=2+7x....... equation (1)
- -2x+6y=-28..... equation (2)
Thus, substitute y=2+7x into equation (2)
simplify it
subtract 12 from both sides
divide both sides by 40
Therefore, as we get the value of x=-1 substitute it to equation (1) and solve for variable y
To be more sure make a cross check on both of the two expressions
Thus,
1) y=2+7x .... substitute y=-5 and x=-1 and check if it is equal
-5=2+7(-1)
-5=2-5
-5=-5
2)-2x+6y=-28... substitute and check
-2(-1)+6(-5)=-28
2-30=-28... (-a)(-b)=ab
-28=-28
Hope it helps!