Find an Exponential Function of the Form F (X) = $y = 5 \left( \frac { 1 } { 125 } \right) ^ { x }$

question 12

Multiple Choice

Find an exponential function of the form f (x) = ba ^x that has the given y-intercept and passes through the point P: y-intercept = 125; P (3,1) ;

• A) \(y = 5 \left( \frac { 1 } { 125 } \right) ^ { x }\)
• B) \(y = \frac { 1 } { 125 } \left( \frac { 1 } { 5 } \right) ^ { x }\)
• C) \[y = 125 \left( \frac { 1 } { 5 } \right) ^ { x }\]
• D) \(y = 5 \left( \frac { 1 } { 5 } \right) ^ { x }\)
• E) \(y = 125 \left( \frac { 1 } { 125 } \right) ^ { x }\)

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