anonymous one year ago 2nd integer question

1. anonymous

2. anonymous

3. anonymous

It says that the integers are consecutive, so each integer must be 1 more than the integer before it. So, the table will look exactly like the one in the previous question. OK?

4. anonymous

In this question, you need to add the 2nd and 3rd integers. What do you get?

5. anonymous

x+1 then x+3

6. anonymous

Sorry, I messed up. It says that the integers are consecutive EVEN integers. So if the first EVEN integer is x, what is the next EVEN integer?

7. anonymous

x+1?

8. anonymous

Not quite. For example, if the first even integer is 4, what is the next even integer?

9. anonymous

x+5

10. anonymous

Whoa. Let's back up. What is the next largest even integer after 4?

11. anonymous

5?

12. anonymous

Do you know what an even number is?

13. anonymous

It's OK. Yes or no?

14. anonymous

The next even number after 4 is 6

15. anonymous

Correct. So, if you have any even integer, how much to you have to add to it to get the next largest even integer?

16. anonymous

the next even number from x would be 2 correct?

17. anonymous

No. If x is an even integer, how much do you have to add to it to get the next largest even integer?

18. anonymous

It seems you recognize that even integers are two numbers apart. So the next largest even integer to an even integer x is 2 more than x. How do you write "2 more than x" mathematically?

19. anonymous

Hello? Do you still help?

20. anonymous

*need help?

21. anonymous

I'm sorry I'm just really stressed out on this assignment, I've been doing it for over 3 hours.

22. anonymous

OK. Stay with me and we'll work it out together. Can you answer my last question?

23. anonymous

2+x

24. anonymous

Right! Except we would normally write it as x + 2. What is the next even integer after x + 2 ?

25. anonymous

x+4

26. anonymous

Excellent. Now your table is filled out. First even integer: x Next even integer: x + 2 Next even integer: x + 4 The question asks for the sum of the second and third ones. Can you do that?

27. anonymous

Yes.

28. anonymous

What do you get?

29. anonymous

I think I did it wrong. I got 6.

30. anonymous

$\left( x+2 \right) + \left( x+4 \right) = ?$

31. anonymous

2x+6

32. anonymous

Correct. Good job!