How to use your calculator to solve a system of 2 or 3 linear equations, as well as how to solve polynomial equations (finding zeros or roots)
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A yoga studio offers two different monthly plans.
Plan A costs $40 for each visit.
Plan B costs $120 initially, then costs $10 for each visit.
a) Write an equation for plan A, relating the price P (in $) in terms of v (the number of visits).
b) Write an equation for plan B, relating P and v.
c) How many visits until the cost of plan B equals plan A?
d) If you will visit 5 times each month, which plan should you choose?
Answer:a) $latex P=40v$
b) $latex P=10v+120$
c) At 4 visits, plan B = plan A
d) Choose plan B, since it costs less after 4 visits. (Plan A is cheaper for 0 to 4 visits)
What? Why?
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IB Math Applications & Interpretation (AI) Online Revision Videos
