Question

Beth purchased a computer, and its value depreciated exponentially each year. Beth will sketch a graph of the situation, where x represents the number of years since she purchased the computer, and y represents its value that year.

Beth will only sketch the graph in the quadrant or quadrants for which it makes sense to.

In which quadrant or quadrants will Beth sketch the graph?

1. Quadrants I and IV only

2. Quadrant I only

3. Quadrants I, II, III, and IV

4. Quadrants I and II only

Please help, thank you

Answer 1

number 2 is the correct answer

Answer 2

• x represents the number of years since purchase. Can x be negative? NO! Number of Years will have to be positive.
• y represents the value of the computer at a specific year. Can this be negative? NO! Value of 0 is when the computer is totally worthless. Negative value doesn't exist for computer.

So we need a quadrant where x is positive and y in positive. It is the first quadrant.

Answer choice 2 is right.

ANSWER: Answer Choice #2 (Quadrant I only)