Question

The value of a baseball card can be represented by the equation Y−3x4=39, where x represents the number of years that Robert has owned the card and y represents the total value, in dollars, of the card. What was the value of the card when Robert originally purchased it?

A) $3
B) $13
C) $36
D) $39

Answer 1

The original value of the card was $9, found by calculating the y-intercept of the equation representing the value of the card over time.

Step-by-step explanation:

The original value of the baseball card when Robert first purchased it can be found by determining the y-intercept of the equation y = 9 + 3x, which represents the value of the card when x (the number of years owned) is 0. To find this, we simply plug 0 in for x and solve for y, which gives us y = 9. This means that the card's value was $9 when Robert originally purchased it.