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lapo4ka [179]
3 years ago
8

50 points!! Tiana compares the length of a name on a nameplate to the number of letters in the name. She draws the scatterplot b

elow, and then she plots and determines an equation for the trend line.
Based on the information above, which is the best estimate of the number of letters that a name contains if the nameplate is 6 inches long?
3
4
10
12

Mathematics
2 answers:
V125BC [204]3 years ago
7 0

Answer:

Correct choice is A

Step-by-step explanation:

Variable x represents the number of letters in the name and variable y represents the length of a name on a nameplate. The function

y=1.47x+2.05

determines the relationship between x and y.

When the nameplate is 6 inches long, then y=6 and you can find x:

6=1.47x+2.05,\\ \\1.47x=6-2.05,\\ \\1.47x=3.95,\\ \\x\approx 2.69.

Since the number of letters that a name contains should be a whole number, then

x\approx 3\ letters.

ziro4ka [17]3 years ago
6 0
I belive it is 3, hope I helped
!
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