Question

Help please!!!Which of the quadratic functions has the narrowest graph?
1)y=9x^2
2)y=-0.9x^2
3)y=-10x^2
4)y=2/5x^2

Answer 1

Which has the largest |a|?

Answer 2

y=9x^2

Answer 3

Close. Even though -10 is less than 9, |-10| = 10, which is greater than |9|, which is 9.
So the answer would be 3.

Answer 4

oh wow i didn't even realize that was a 10.... sigh.. thank you!