Given the function f(x) = 7x – 5, we want to find its inverse.
Step 1: Start with the equation y = 7x – 5.
Step 2: Swap x and y: x = 7y – 5.
Step 3: Solve for y:
7y = x + 5
y = (x + 5) / 7
Final Result: The inverse function is f⁻¹(x) = (x + 5) / 7.
Given the function y = mx + b, we want to find its inverse.
Step 1: Start with the equation y = mx + b.
Step 2: Swap x and y: x = my + b.
Step 3: Solve for y:
Subtract b: x – b = my
Divide by m: y = (x – b) / m
Final Result: The inverse function is f⁻¹(x) = (x – b) / m.