Answer:
The inverse = f-1(x) = (x - 1)/2.
Step-by-step explanation:
f(x) = 2x + 1
2x = f(x) - 1
x = (f(x) - 1)/2
Now replacing the x by the inverse f-1(x) and the f(x) by x, we get:
f-1(x) = (x - 1)/2.
Answer:
Step-by-step explanation:
f(x) = 2x + 1....change f(x) to y
y = 2x + 1....now switch ur x and y
x = 2y + 1...now solve for y
x - 1 = 2y ...divide both sides by 2
(x - 1) / 2 = y....rearrange
y = (x - 1) / 2 OR y = x/2 - 1/2 <====
