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briceevans32
05.05.2020 •
Mathematics
The value of a baseball player's rookie card began to increase once the player retired. When he retired in 1996 his card was worth $9.23. The value has increased by $1.04 each year since then. Express the relationship relating the value of the card y in dollars and the number of years x the player has been in retirement with an equation. Is the relationship between x and y proportional? What was the value of the card in 2004?
PLEASE ANSWER ALL 3 PARTS OF THE QUESTION!
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Ответ:
Part 1) The equation is
Part 2) The value of the card in 2006 was
Step-by-step explanation:
Part 1) Express the relationship relating the value of the card y in dollars and the number of years x the player has been in retirement with an equation
Let
x > the number of years since 1996
y > the value of the card
we know that
The linear equation in slope intercept form is
where
m is the slope
b is the y-coordinate of the y-intercept
In this problem
we have that
1) The value of the card has increased by $ 1.92 each year since 1996
so
The unit rate or slope of the linear equation is
2) When he retired in 1996 his card was worth $ 8.76
Remember that the y-intercept is the value of y when the value of x is equal to zero
In this problem, the y-intercept is the value of the card when the year is 1996 (the number of years is zero)
so
The y-intercept is the point (0,8.76)
substitute the values in the linear equation
This relation is not proportional, because the linear equation not passes trough the origin
Part 2) What was the value of the card in 2006?
Determine the number of years since 1996
x=2006-1996=10 years
substitute the value of x in the equation and solve for y
Ответ:
drag zero pairs to the window, and remove the 5 groups of -2 tiles