Question

In the function

y= -1/2(x - 1)^2+3 what effect does the negative sign
have on the graph, as compared to the graph of y=x'?


A. It reflects the graph across the x-axis.

B. It shrinks the graph horizontally by a factor of -1.

C. It stretches the graph horizontally by a factor of 1.

D. It reflects the graph across the y-axis.

Answer 1

A. It reflects the graph across the x-axis.

Explanation:

See the attachment. Each vale of y is changed from a positive to the same negative value, resulting in the reflection.