ANSWER:
f(x)⁻¹ = (x+10)/2
WORKING OUT:
f(x) = 2x - 10
y = 2x - 10
*Replace all 'y' values with 'x' and vice versa*
x = 2y - 10
*Make y the subject of the equation*
2y = x+10
y = (x+10)/2
Answer:

Step-by-step explanation:
if you divide a square, that makes it a square root
and then you just subtract the m
Answer:
Step-by-step explanation:
14(1.06)-12(1.06)
1.06(14-12)
1.06(2)
$2.12
Use the fundamental trigonometric equation

To rewrite the equation as

Subtract 1 from both sides:

Add
to both sides:

A multipication is zero if and only if one of the factors is zero. So, the solutions are given by

or

Answer:
C. -7y+8
Step-by-step explanation: