i need help graphing these please and thanks. i dont need to find the domain and range.

Answer
[tex]y=-4x^2[/tex][tex]y=-1.5x^2[/tex][tex]y=3x^2[/tex]Explanation
The number that multiply x^2 contract the function horizontally.
The - corresponds to a reflection over the x-axis of the original x^2 function.