Question

CAN SOMEONE PLEASE HELP ME

Answer 1

Answer:

B. When it was purchased (year 0), the coin was worth $3.

Step-by-step explanation:

We have been given graph of function $f(t)=3\cdot 2^t$, which represents the value of a rare coin in the year t. We are asked to tell the meaning of the y-intercept.

We know that y-intercept is the point, where graph intersects y-axis. It is also known as the initial value.

The y-intercept of the function will be at $t=0$. Upon substituting $t=0$ in our given formula, we will get:

$f(0)=3\cdot 2^0$

$f(0)=3\cdot 1$

$f(0)=3$

So, the y-intercept of our given function would be 3.

Since the given function represents the value of a rare coin in the year t, so y-intercept $(t=0)$ tell us that the value of coin is $3, when it was purchased and option B is the correct choice.

Answer 2

The y-intercept is where the curve crosses through the y axis (it intercepts it). In this case the y intercept would be worth three dollars at year 0. As years are time, and time is generally placed along the x axis.