Identify the transformation of $f ( x ) = 15 ^ { x }$ . $h ( x ) = - 15 ^ { x }$
A)a reflection about the y -axis
B)a reflection about the x -axis
C)a reflection about the line y=-x
D)a reflection about the line y=x
E)a reflection about the line x=15

Question

Identify the transformation of $f ( x ) = 15 ^ { x }$ . $h ( x ) = - 15 ^ { x }$
A)a reflection about the y -axis
B)a reflection about the x -axis
C)a reflection about the line y=-x
D)a reflection about the line  y=x
E)a reflection about the line x=15

Quizplus · Accepted Answer

The transformation is a reflection about the x-axis because the negative sign in front of the function causes a reflection of the graph about the x-axis.

Identify the Transformation Of f(x)=15xf ( x ) = 15 ^ { x }f(x)=15x

Identify the Transformation Of $f ( x ) = 15 ^ { x }$