ANSWER
[tex]y=0.15x^2, y=2x^2,y=4x^2[/tex]
EXPLANATION
The given quadratic functions are;
[tex]y = 4 {x}^{2} [/tex]
[tex]y = 2 {x}^{2} [/tex]
and
[tex]y = 0.15 {x}^{2} [/tex]
A fractional coefficient indicates a horizontal stretch.
The smaller the coefficient, the wider the stretch for
[tex] |a| < 1[/tex]
and
[tex]a \ne0[/tex]
Also
[tex] |a| > 1[/tex]
indicates a horizontal compression.
The higher the value the narrower the graph.
Therefore from widest to narrowest, we have,
[tex]y=0.15x^2, y=2x^2,y=4x^2[/tex]
See graph.
