## anonymous one year ago Explain how to find the solution(s) to the system. Give the solutions(s) as ordered pairs rounded to the nearest hundredth, if necessary. \begin{array}{l}y = - 0.5{x^2} + x + 6\\y = 3.25\end{array}

1. anonymous

@Lurker

2. anonymous

I just need help with 4 questions please

3. anonymous

y is equal to those 2 things so you can equate them together

4. anonymous

$3.25= - 0.5{x^2} + x + 6$

5. anonymous

okay

6. anonymous

simplify it to $0= - 0.5{x^2} + x + 2.75$ now you can use the quadratic equation to find the roots

7. anonymous

|dw:1437151783796:dw|

8. anonymous

|dw:1437151816623:dw|

9. anonymous

okay

10. anonymous

I got 4.25

11. anonymous

what would it be as an ordered pair

12. anonymous

@liana1026

13. anonymous

yes

14. anonymous

it's 3 question I need help on now

15. anonymous

mmk

16. anonymous

the first one I posted I need the order pairs

17. anonymous

\begin{array}{l}y = - 0.5{x^2} + x + 6\\y = 3.25\end{array}

18. anonymous

okayy sooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooo

19. anonymous

an ordered pair is a point, they want you to give the y value there along with the x value

20. anonymous

remember what you solved here to begin with, we found the x value for the given y value of 3.25

21. anonymous

so y is 2

22. anonymous

y=3.25

23. anonymous

so the x value is 2

24. anonymous

did you put everything into the formula properly

25. anonymous

|dw:1437152977714:dw|

26. anonymous

|dw:1437152990004:dw|

27. anonymous

you will get 2 values for x

28. anonymous

as youd expect because there could be 2 places where your parabola passes through y=3.25

29. anonymous

|dw:1437153093570:dw|

30. anonymous

ok

31. anonymous

so for the ordered pair I have to round them to the nearest hundredth , So I do know that the Variable will be a decimal

32. anonymous

yes

33. anonymous

but what are the ordered pairs

34. anonymous

is okay if we come back to this one

35. anonymous

when you find both of the xs lets say x1 and x2 then the ordered pairs would be (x1,3.25) and (x2,3.25) this is what we solved initially we wanted to know the x values when y=3.25 look at the 2 equations you are given