Emily researched the average prices of desktop PCs worldwide since 2000. She could only find data from 2005 to 2010. She created
a scatter plot of the data and drew a linear model.
What is the relationship between the average price of PCs and the number of years that have passed since 2000?
WILL MARK BRANLIEST
What is the relationship between the average price of PCs and the number of years that have passed since 2000?
WILL MARK BRANLIEST
1 answer:
Answer: A linear relationship
Step-by-step explanation:
From the graph we can see as the number of years increasing the average price of a PC decreasing at a constant rate.
It is forming a straight line and its equation is similar to equation of line
, where m= -39 which is the rate of change of average price.
Hence, the relationship between the average price of PCs and the number of years that have passed since 2000 is a linear relationship.
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Answer:
AE = 18 units
Step-by-step explanation:
Δ AEB and Δ DEC are similar , then corresponding sides are in proportion, that is
=
, substitute values
=
( cross- multiply )
10(2x + 4) = 12(x + 8) ← distribute parenthesis on both sides
20x + 40 = 12x + 96 ( subtract 12x from both sides )
8x + 40 = 96 ( subtract 40 from both sides )
8x = 56 ( divide both sides by 8 )
x = 7
Then
AE = 2x + 4 = 2(7) + 4 = 14 + 4 = 18 units