Which of the quadratic functions has the narrowest graph?
y = 1/2x^2
y = 1/7x^2
y = -4x^2
y = -2x^2
The quadratic function with the narrowest graph is the one with the largest coefficient on the x^2 term.
Out of the given options, y = -4x^2 has the highest coefficient of -4, so it has the narrowest graph.