Question

the average number of hours a user spent each month on a particular site increased from 15 in 2018 to 17.5 in 2020, then decreased to 16 in 2021. use a graph that displays the average monthly hours spent on the site as a function of time to estimate the monthly usage for 2019 and for 2023. choose the correct graph. let the horizontal axis, t, represent the year and the vertical axis, h, the average number of hours a user spent each month.

Explanation:

Step1: Analyze the trend

The usage starts at 15 in 2018, increases to 17.5 in 2020, then decreases to 16 in 2021. We need to check which graph shows this trend.

Step2: Check each option

• Option A: The initial value and the trend don't match the given data.
• Option B: Let's check the values. In 2018, the value should be 15, then increase to 17.5 in 2020, then decrease to 16 in 2021. This graph seems to follow that trend.
• Option C: The scale or the values don't align with the given data.
• Option D: The shape and values don't match the described trend.

Answer:

B. (The graph in option B which shows the correct trend of increasing from 2018 to 2020 and then decreasing in 2021 as per the given data)