Find the Inverse Mentally $$f ( x ) = 7 x - 8$$

question 79

Multiple Choice

Find the inverse mentally.
- $$f ( x ) = 7 x - 8$$

• A) \(f ^ { - 1 } ( x ) = \frac { 8 - x } { 7 }\)
• B) \(f ^ { - 1 } ( x ) = 8 - \frac { x } { 7 }\)
• C) \(f ^ { - 1 } ( x ) = \frac { x + 8 } { 7 }\)
• D) \(f ^ { - 1 } ( x ) = \frac { x } { 7 } + 8\)

Identify and apply real number properties (e.g., distributive, commutative, associative, additive inverse, additive identity properties).

Perform basic arithmetic operations, including the use of the distributive property to simplify expressions.

Calculate the total amount saved over time, including simple interest calculations.

Solve problems involving exponents and powers, including their evaluation.

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