Layla has 25 toys in her toy box, and she adds 4 new toys every month. Based on this information, which equation best shows the
1 answer:
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Answer:
Correct choice is B
Step-by-step explanation:
All three functions are increasing when x is increasing. You can find values of each function when x is "enough large". For example, at x=100,
1. linear function:
2. exponential function:
3. quadratic function:
As you can see, when x approaches positive infinity, the exponential function will exceed both the linear and the quadratic functions.
Also you can use graphical method to get from the attached diagrams result. When x approaches positive infinity, the exponential function will exceed both the linear and the quadratic functions.
Correct choice is B.
Answer:
23040 bats
Step-by-step explanation:
Let N(t) be the number of bats at time
We know that exponential function
According to question
Where t (in years)
Substitute t=2 and N(2)=180
Substitute t=5 and N(5)=1440
Equation (1) divided by equation (2)
By using the property
Substitute the values of b in equation (1)
Substitute t=9
Hence, after 9 years the expected bats in the colony=23040 bats