Simplify square root 9 = 9 1/2
1 answer:
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Answer:
Step-by-step explanation:
a) It can be convenient to use the square root function as one being defined only for values greater than or equal to some number. Here, we need to shift that function 3 units to the left, so its domain is [-3, ∞).
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b) One way to put holes in a function is to put vertical asymptotes there. This function can be defined to have vertical asymptotes at x=2 and x=4 so those values are excluded from the domain.
Answer:
And the best option would be:
a. ŷ= 37.643-1.0543x
Step-by-step explanation:
We assume that the data is this one:
x: 34.0, 32.5, 35.0, 31.0, 30.0, 27.5, 29.0
y: 1.30, 3.25, 0.65, 6.50, 5.85, 8.45, 6.50
Find the least-squares line appropriate for this data.
For this case we need to calculate the slope with the following formula:
Where:
So we can find the sums like this:
With these we can find the sums:
And the slope would be:
Nowe we can find the means for x and y like this:
And we can find the intercept using this:
So the line would be given by:
And the best option would be:
a. ŷ= 37.643-1.0543x