What are the domain and range of the function f(x) = 3x + 5?
2 answers:
Answer:
B
Step-by-step explanation:
Exponential functions are curves which approach a horizontal asymptote usually at y=0 or the x-axis. This function has been moved up 5 units so its asymptote is at y=5. This means the function never goes below 5 in its y-values.
The x values are not affected and all are in the function. This is the domain. So the domain is (-∞, ∞).
The y values are affected and are y > 5. This is the range and it is written
(5, ∞).
Option B is correct.
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Answer:
(0.084,0.396)
Step-by-step explanation:
The 99% confidence interval for the proportion of customers who use debit card monthly can be constructed as
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