What is the image of (-1, 1) after a dilation of 2? (1, 3) (-2, 2) (2, 2)
2 answers:
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Try this solution:
1. according to the definition of logarithm
where a∈(0;1)∪(1;+oo) and b>0.
2. The variable is only in b, using item 1. it is possible to write: x+3>0.
⇒ x>-3.
Answer: D(f)=(-3;+oo).
1. according to the definition of logarithm
2. The variable is only in b, using item 1. it is possible to write: x+3>0.
⇒ x>-3.
Answer: D(f)=(-3;+oo).