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DiKsa [7]
4 years ago
9

The scatterplot and trend line show a positive correlation between advertising costs and sales. The slope was found using the po

ints (6.4, 117) and (6.6, 120). What is the value of b in the equation of the trend line? y = 15x + b
Mathematics
2 answers:
andrey2020 [161]4 years ago
6 0
When x = 6.4, y=117, therefore
15*6.4 + b = 117
b = 117 -  96 = 21

Confirm this value by checking (6.6, 120).
15*6.6 + 21 = 120 (Correct)

Answer: b = 21
Aloiza [94]4 years ago
3 0

Answer:

21

Step-by-step explanation:

just took it and got it brah

Brianna bts
2 years ago
thxs and really needed
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