## vera_ewing one year ago math question

1. vera_ewing

2. unimatix

I can help with this.

3. unimatix

Okay so do you know what the x and y intercepts are? Can you find the x and y values you are looking for?

4. vera_ewing

2 and 5?

5. carolinar7

So what is the slope between those lines

6. unimatix

So it line would include (2, 0) and (0, 5) . Does that make sense?

7. vera_ewing

Yes, ok. Now what?

8. unimatix

Do you know how to find the slope?

9. carolinar7

Find the slope

10. vera_ewing

-5/2

11. carolinar7

$\frac{ y2-y1 }{ x2-x1 }$

12. vera_ewing

So what would the equation be in standard form?

13. carolinar7

y=ax+b I believe

14. anonymous

x-intecept of 2 (i.e. the point (2,0)) and a y-intercept of 3 (i.e. the point (0,3)) lie on the line... so repeat the procedure from the previous problem and your golden :D

15. anonymous

No standard from is ax+by=c

16. carolinar7

ok

17. carolinar7

True I forgot

18. anonymous

y=mx+b is slope intercept and point slope is the y2-y1=m(x2-x1)

19. anonymous

No probs :D

20. carolinar7

Remember that A has to be a positive and a whole number

21. vera_ewing

Wait so what is the equation in standard form?

22. unimatix

I've always thought point slope form looked so ugly.

23. anonymous

Yea honestly its only a cheat formula to remember the slope formula

24. unimatix

get your x value and y value on the same side and you've got standard form.

25. vera_ewing

So what would it look like? Can you show me?

26. unimatix

27. unimatix

See the x and y are on the same side, constant is on the other.

28. vera_ewing

So it would be 2x+5y=-5/2 ?

29. unimatix

30. unimatix

So how I'd solve it is: y = mx + b M = slope. Then plug in your x and y

31. unimatix

What did you get for you slope?

32. vera_ewing

y = -5x/2 + 5 is slope-intercept form right?

33. unimatix

Yep!

34. vera_ewing

So what would it be in standard form?

35. unimatix

So try adding the 5x/2 to each side from slope int.

36. vera_ewing

5x+2y=10?

37. unimatix

Ah yes. That looks right!

38. vera_ewing

Thanks

39. unimatix

You're welcome. Oh and if you ever want to check you can always plug in your values!