Shanti wrote the predicted values for a data set using the line of best fit y = 2.55x – 3.15. She computed two of the residual v
alues.
What are the values of a and b?
a = 0.4 and b = –0.15
a = –0.4 and b = 0.15
a = 8.6 and b = 14.25
a = –8.6 and b = –14.25
What are the values of a and b?
a = 0.4 and b = –0.15
a = –0.4 and b = 0.15
a = 8.6 and b = 14.25
a = –8.6 and b = –14.25
1 answer:
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f(3) = 1.9
Solution:
Given function:
To find f(3):
Substitute x = 3 in the given function.
Let us first simplify .
Apply exponent rule:
The value of . (using calculator)
Substitute this value in f(3).
f(3) = 1.9
Hence the value of f(3) is 1.9.