Create a problem that would have the answer 3x+12
1 answer:
Answer:
Problem:
Consider a rectangle such that the length of the rectangle is 12 more than thrice its width. Find a formula for the length in terms of its width. Take width as 'x'.
Step-by-step explanation:
Consider a rectangle such that the length of the rectangle is 12 more than thrice its width. Find a formula for the length in terms of its width.
Let the width be 'x'.
Therefore, as per question, length is 12 more than thrice the width.
Thrice the width means . 12 more means adding 12 to the result.
Therefore, the length of the rectangle is
So, the above question expresses the length of the rectangle as which is the required answer.
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Answer:
see explanation
Step-by-step explanation:
If f(x) and g(x) are the inverses of each other, then
f(g(x)) = g(f(x)) = x
f(g(x)) = f(x - ) = x -
+
= x
g(f(x)) = g(x + ) = x +
-
= x
Hence f(x) and g(x) are the inverse of each other