The function f(x) = -|x - b| intersects g(x) = 2(x - 4)2 at exactly one point. The value of b is:
Question
The function f(x) = -|x - b|
intersects g(x) = 2(x - 4)^2
at exactly one point.
The value of b
is:
Solution
To find the value of b, we need to set the two functions equal to each other and solve for x, then substitute x into one of the functions to find b.
Step 1: Set the functions equal to each other:
-|x - b| = 2(x - 4)^2
Step 2: Solve for x:
Because the absolute value function splits into two cases, we have:
Case 1: -(x - b) = 2(x - 4)^2 Case 2: x - b = 2(x - 4)^2
Solving these equations will give us the x-values where the functions intersect.
Step 3: Substitute x into one of the functions to find b:
Substitute the x-values from step 2 into the function f(x) = -|x - b| to find the corresponding b-values.
However, the problem states that the functions intersect at exactly one point. This means that the x-values from step 2 must be equal, and therefore the b-values must also be equal.
If the b-values are not equal, then there is no value of b for which the functions intersect at exactly one point.
If the b-values are equal, then that is the value of b for which the functions intersect at exactly one point.
Note: The above steps provide a general approach to solving the problem. However, without specific solutions for the x-values in step 2, we cannot provide a specific value for b.
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