Raymond B. answered • 06/21/21
Tutor
5
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Math, microeconomics or criminal justice
widest is the one with the smallest absolute value of the coefficient of the x^2 term
for this example, you don't have to worry about absolute values, as
-1/5< -1/3 < -7
1/5<1/3 <7
y=(-1/5)x^2 is widest
y=(-1/3)x^2 is not as wide
y=(-7)x^2 is narrowest
if the coefficient were zero, the parabola collapses into a flat line, which is wide as it gets
