Q. Find the inverse function in slope-intercept form (mx+b) :f(x)=−25x−10Answer: f−1(x)=
Understand Inverse Function Concept: Understand the concept of an inverse function. An inverse function, denoted as f−1(x), swaps the x and y values of the original function. For the function f(x)=y, the inverse function would satisfy the equation x=f−1(y). To find the inverse function in slope-intercept form, we need to solve for y in terms of x.
Write Original Function: Write the original function, replacing f(x) with y.y=−(25)x−10This is the starting point for finding the inverse function.
Swap x and y: Swap x and y to begin finding the inverse function.x=−(25)y−10By swapping x and y, we are setting up the equation to solve for the inverse function.
Solve for Inverse Function: Solve for y to find the inverse function.First, add 10 to both sides of the equation to isolate the term with y on one side:x+10=−(25)yNext, multiply both sides by −52 to solve for y:y=(−52)(x+10)
Simplify Inverse Function: Simplify the expression for the inverse function. y=5−2x−4This is the inverse function in slope-intercept form, where the slope is 5−2 and the y-intercept is −4.
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