The linear function graphed below represents the value of a comic book since lucy purchased it. what was the value of the comic book when lucy bought it?

The answer be 25

Step-by-step explanation:

C. $25

Step-by-step explanation:

We will find,

The slope of the function using .

Taking the points (1,40) and (2,55).

Slope =

i.e. Slope =

i.e. Slope = 15

Substituting the slope and point (1,40) in the equation ,

We have,

i.e.

i.e. b= 25

Thus, the equation of the linear function is .

This linear function represents the cost of the comic book since Lucy purchased it, where x= years.

So, the initial value of the comic book is when x= 0.

So, i.e. y= 25

Hence, the cost of the book when Lucy purchased it was $25.

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step-by-step explanation: