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Solve a real-world problem where Izzy gives her September-born friends $5 each, exploring functions, variables, domain, range, and more in an equation. Analyze if it's a function and its discrete nature.
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Functions project By . David White
Real world problem • Izzy is giving each of her friends with birthdays in September 5 dollars. How much money does she need.
Equation • y=5x
Independent and dependent variables • Money depends on friends.
Functions • Is this a function ?- yes • Why- the x coronets don’t repeat
Domain & Range • Domain- the x values {1,2,3,4,5} • Range- the y values (5,10,15,20,25)
Continues or Discreet • Is it continues or discreet Discreet • Why The points stop and don’t continue
Function notation • Equation stated -y=5x • Function notation – f(x)=5x