Using the data provided we would create the following equation to calculate Grace's bank account using the variable x to represent the number of weeks.
f(x) = 5x + 15
The slope of a function in such a function would be the value of that is being multiplied by x. The numerator would be the numberof units it is rising in a graph while the denominator represents the number of units it is moving to the right. Since in this scenario, the number is a whole number (5) the denominator is automatically 1. Meaning that the slope is 5 units up for every 1 unit to the right.
6,000 = 6 x 10^3 square meters. 6,000 = 60 x 10^2 square meters 6,000 = 600 x 10^1 square meters. You can pick which you wish to report in. Hope this helps :-)