Step-by-step explanation:
Given
f(x) = 2x - 1
f^-1 (x) = ?
Now
Let y = f(x)
or y = 2x - 1
Interchanging the role of x and y
x = 2y - 1
x + 1 = 2y
y = <u>x </u><u>+</u><u> </u><u>1</u>
2
Therefore f^-1(x) = <u>x </u><u>+</u><u> </u><u>1</u>
Hope it will help you :)
Answer:
2.56 repeating
38
3x + 2y when X=10 and y=4
3(10) + 2(4)
30 + 8
the answer is 4,744
just subtract
A