## iwanttogotostanford one year ago ACT PREP Q/ PLEASE HELP:

1. iwanttogotostanford

2. iwanttogotostanford

@Utterly_Confuzzled :-)

3. iwanttogotostanford

@Nnesha @pooja195

4. Utterly_Confuzzled

You can find the axis of symmetry by finding the vertex using the formula $\frac{ -b }{ 2a }$ The answer you get should be the axis of symmetry. Then you just rank them from there. And if you need help with h(x)'s axis of symmetry, let me know

5. iwanttogotostanford

@Utterly_Confuzzled could you do a step by step? I really need to know how to do this and this is like my study guide time:-)

6. iwanttogotostanford

7. Utterly_Confuzzled

f(x)=3(x+4)^2+1 =3(x^2+8x+16)+1 =3x^2+24x+49 -24/2(3) = -4 f(x) axis of symmetry = -4 Give me a sec to do g(x) and h(x)

8. Utterly_Confuzzled

g(x)=2x^2-16x+15 16/2(2) = 4 g(x) axis of symmetry = 4 h(x) axis of symmetry = 1 rankings - f(x), g(x), h(x)

9. iwanttogotostanford

thank you so much! Now what do i do

10. Utterly_Confuzzled

I think that's all you needed to do

11. iwanttogotostanford

just write out all of those?

12. iwanttogotostanford

WOW thank YOUUUU

13. iwanttogotostanford

:-D

14. Utterly_Confuzzled

Yeah. What I typed showed work, so that should be fine. Do you understand how I got those though?

15. iwanttogotostanford

yes! completely understand!!

16. Utterly_Confuzzled

Awesome! Glad I could help!