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

A. It reflects the graph across the x-axis
B. It shrinks the graph vertically by a factor of 3
C. It stretches the graph horizontally by a factor of 3.
D. It shrinks the graph horizontally by a factor of 3

Question

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

A. It reflects the graph across the x-axis
B. It shrinks the graph vertically by a factor of 3
C. It stretches the graph horizontally by a factor of 3.
D. It shrinks the graph horizontally by a factor of 3

anonymous · Answer

A

anonymous · Answer

A and the 3 makes the graph more narrow, im not sure if it is by a factor of 3 though.

anonymous · Answer

http://www.wolframalpha.com/input/?i=plot+y%3D-3x^2%2B1%2C++y%3Dx^2

anonymous · Answer

thank you