Q. Find the inverse function in slope-intercept form (mx+b) :f(x)=−52x+8Answer: f−1(x)=
Understand Inverse Function Concept: Understand the concept of an inverse function. An inverse function, denoted as f−1(x), swaps the roles of the input and output of the original function. For the function f(x)=y, the inverse function answers the question: for a given y, what x would produce that y?
Write Original Function: Write the original function, replacing f(x) with y for convenience.y=−(52)x+8
Swap x and y: Swap x and y to find the inverse function.x=−(52)y+8
Solve for y: Solve for y to express the inverse function in terms of x.First, isolate the term containing y on one side:(52)y=8−x
Multiply by Reciprocal: Multiply both sides by the reciprocal of the coefficient of y to solve for y.y=(25)(8−x)
Distribute (5/2): Distribute the (5/2) across the terms in the parentheses.y=(5/2)⋅8−(5/2)⋅xy=20−(5/2)x
Write Final Inverse Function: Write the final inverse function in slope-intercept form. f−1(x)=20−25x
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