Answer:
a) domain: (0, ∞)
b) range: (-∞, ∞)
c) increasing everywhere
d) concave downward
Step-by-step explanation:
a) Your knowledge of the log function tells you it is defined for positive arguments. 9x > 0 means x > 0. The domain is all positive real numbers.
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b) Your knowledge of the log function tells you it has output values ranging from -∞ to +∞. The range is all real numbers.
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c) The function is monotonically increasing.
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d) Since the output does not increase as fast as the input (the first derivative is decreasing), the function is concave downward.
4x+1=1/3x+10
4x=1/3x+10-1
4x=1/3x+9
4x-3x=9
x=9
Answer: 60( 1 - 72)
Step-by-step explanation: i think it might be right so heres a proof
Answer:
3, 6, 12, 15
Step-by-step explanation:
3/12= 4
3/9= 3