Question

The value of a collectible coin can be represented by the equation y = 2x + 15, where x represents its age in years and y represents its total value in dollars. What is the value of the coin after 19 years?

$2
$23
$38
$53

Answer 1

We can see that x represents the age in years and y represents its total value in dollars. The question gives us the value of x, 19. So we can plug in 19 for x. This would be y = 2(19) + 15, which is y = 38+15, and when adding them we get $53. So your answer would be D. 

Hope this helps! :D Feel free to ask me more questions.

Answer 2

Answer: $53

Step-by-step explanation: y=2x+15 where x represents its age in years and y represents its total value in $

given x=19 years

y= 2×19+15

=38+15

 = $53