How did u get the z value
1 answer:
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Answer:
The linear regression model is .
Step-by-step explanation:
The given data points are (-6 4) (-4 0) (-3 -2) (-1 -7). Plot these points on a coordinate plane.
From the graph it is clear that the point are in the form of a straight line, so we need to use the linear regression model.
The general linear regression model is
Using technology we get
Put a=-2.19 and b=-8.92 in the above equation.
Therefore the linear regression model is .
Answer:
The solutions are and
Step-by-step explanation:
we have
Divide by both sides
------>
we know that
The formula to solve a quadratic equation of the form is equal to
in this problem we have
so
substitute
Answer: the answer is 6)
Step-by-step explanation:
Because .
=
=
I hope it right