Question

Use the image to answer the question.

A line is graphed on a coordinate plane.
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The horizontal axis ranges from 0 to 4 in increments of 0.5, and the vertical axis ranges from 0 to 800 in increments of 200. A curved, increasing line is drawn on the graph. Four points are marked along the line with their coordinates labeled as (0,20), (1,60), (2,180), and (3,540). The background is a grid of evenly spaced lines, and the axes are marked with numerical values.

Which of the following situations could describe the graph?

(1 point)

Niall rents a bike for $20 per hour.

Juveldy puts $20 in a high-yield savings account. His investment triples every year.

There are 200 cockroaches in a building, and the population triples every day.

Sienna buys a vintage record for $20. Its value appreciates by 20 percent each year.

Answer 1

Juveldy puts $20 in a high-yield savings account. His investment triples every year.

Reason: the values are 20, 60, 180, 540 = 20·3^0, 20·3^1, 20·3^2, 20·3^3, so the amount triples each unit (year).