Question

Which equation has a narrower graph than y=4x^2?

y =1/3x^2
y = 5x^2
y=1/7x^2
y=2x^2

Answer 1

my answer is y=5x^2

Answer 2

@UnkleRhaukus

Answer 3

@campbell_st

Answer 4

well if the parabola is in the form

\[y = ax^2\]

the larger the value of a, the narrower the parabola.

the reason is the values of increasing quicker with a larger a value

so your answer is correct

a simple solution to questions of this type is to just graph them, use something like

https://www.desmos.com/calculator

hope it helps

Answer 5

oh ok. thanks

Answer 6

yeah. larger coefficient, -> steeper graph