## Mathhelp346 2 years ago PLEASE HELP PLEASE: Write each quadratic function in vertex form. Give the coordinates of the vertex and the equation of the axis of symmetry. Then describe the transformations from f(x)= x^2 to g. g(x)=-x^2+2

1. mark_o.

do you know how to graph these two equation?

2. Mathhelp346

no

3. mark_o.
4. mark_o.

try that

5. mark_o.

can you see the vertex of each eq?

6. Mathhelp346

..how do i enter them in?

7. Mathhelp346

nevermind

8. Mathhelp346

yes

9. mark_o.

now that you know the vertex of each you can write the vertex form of each of the equation

10. mark_o.

the vertex form formula is a(x-h)+k=0, where vertex= (h,k)

11. Mathhelp346

oh ok

12. Mathhelp346

so h is x and k is y

13. mark_o.

from ax^2 +bx +c=0 f(x)=-x^2+2= x^2 where b=0, c=0 g(x)=-x^2+2, where b=0,c=2

14. Mathhelp346

wait why is f(x)=-x^2+2= x^2? shouldn't it be just f(x)=x^2?

15. mark_o.

these two eQ are different, see the graph

16. Mathhelp346

why is the f(x) different?

17. mark_o.

the main form is f(x)=x^2 but if you change them to y=-x^2 now theres a negative sign then if you add 2 then you have to jump up 2 on y axis

18. mark_o.

did you see the difference between the two graph now?

19. Mathhelp346

oh so your showing the transformation?