The slope of the line in the graph represents the rate at which Andre's savings increase over time. In other words, it tells us how much more money Andre has in his bank account each week.
To calculate the slope, we can use the following formula:
slope = (y2 - y1) / (x2 - x1)
where (x1, y1) and (x2, y2) are any two points on the line.
Using the points (0, 20) and (5, 80), we can calculate the slope as follows:
slope = (80 - 20) / (5 - 0) = 60 / 5 = 12
Therefore, the slope of the line is 12. This means that Andre's savings increase by $12 each week.
The vertical intercept of the line represents the initial balance in Andre's bank account. In other words, it tells us how much money Andre had in his bank account at the beginning of the week.
To find the vertical intercept, we can simply look at the point where the line crosses the y-axis. In this case, the line crosses the y-axis at the point (0, 20). This means that Andre's initial balance was $20.
Below is the diagram that shows the slope and vertical intercept of the line and the probable graph of the question.