If $f ( x ) = 8 x + \ln x$

question 11

Multiple Choice

If $f ( x ) = 8 x + \ln x$ , find $f ^ { - 1 } ( 8 )$

• A) \(f ^ { - 1 } ( 8 ) = 1\)
• B) \(f ^ { - 1 } ( 8 ) = 0\)
• C) \(f ^ { - 1 } ( 8 ) = 8\)
• D) \(f ^ { - 1 } ( 8 ) = - 1\)
• E) \(f ^ { - 1 } ( 8 ) = - 8\)

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Definitions:

GPA

Grade Point Average, a standard way of measuring academic achievement in the U.S., calculated by dividing the total amount of grade points earned by the total amount of credit hours attempted.

Deviation IQ

Standard score with a mean of 100 and a standard deviation of 15. As the name implies, these scores are generally used in intelligence testing.

Test-retest Reliability

The consistency of a test's results when administered to the same individuals at different points in time.

Normal Curve

A bell-shaped curve that represents the distribution of scores on many psychological tests, where most scores are near the average and few are very high or very low.