The scenario modeled is option B.
We can obtain the slope-intercept equation of the graph in other to solve the problem given ;
- y = bx + c ; c = intercept, b = slope
Slope = Rise/ Run
Slope = (1500-300) / (12 - 0)
Slope = 1200 / 12 = 100
b = $100
From the graph, the y-intercept is the value of y when x = 0.
Hence, c = 300
The equation is :
Hence, amount saved per month is $100 and the starting amount is $300.
Therefore, the correct option is B.