The interval of time when Juan has more in savings than Fawzia is t > 4
How to determine the interval of time when Juan has more in savings than Fawzia.
From the question, we have:
Juan
Saving = $50
Additional = $20
So, the function is
J(t) = 50 + 20t
Fawzia
Saving = $90
Additional = $10
So, the function is
F(t) = 90 + 10t
Next, we plot the graphs of J(t) and F(t)
From the graph, the interval of time when Juan has more in savings than Fawzia is t > 4
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