Say the tip is 11% of the bill. That's 0.11 times the amount of the bill.
Let b = amount of the total bill
Let T = amount of the tip
An equation that describes the situation is
T(b) = 0.11b,
where T is the amount of the tip and b is the amount of the bill.
This equation represents a function. It determines T as a function of b (because the equation is solved for T, and only b appears on the right side).
22.72 =22.7
22.85=22.9
22.81=22.8
22.65=22.7
22.75=22.8
22.68=22.7
so the ones that round up to 22.7 or 22.8 are the following
22.72
22.81
22.65
22.75
22.68
C.(1,0), (2,0) and (-3,0)
explanation: all the points where the function touches the x-axis
Answer: 720 because 3*3=9 and 240*3=720
Step-by-step explanation:
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