Given:
a.) Plan 1: A flat rate of $175 per month includes unlimited calls and texts with 15 GB of shared data.
b.) Plan 2: A flat rate of $150 per month but only includes 6 GB of shared data, after 6 GB data charge are $5 per GB.
Let,
y = total charges
x = per GB of extra data
For Plan 1, the equation will be:
[tex]\text{ y = 175}[/tex]Since Plan 1 is already a fixed price.
For Plan 2, the equation will be:
[tex]\text{ y = 5x + 150}[/tex]The point where the cost for the both plans is the same will be the point of intersection of the two equations.
Plotting them in a graph will be:
Therefore, the point where cost for both plans to be the same will be at 5, 175.
Or in other words, Plan 1 and Plan 2 will cost the same at Plan 2 to have extra 5 GB of data costing to $175.
