A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

adajiamcneal

  • one year ago

algebra 2

  • This Question is Closed
  1. adajiamcneal
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    1 Attachment
  2. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    in order to get the y-intercept, we have to set x=0 into your equation, so we get: -3*0-10 y=7 -10 y=7 now please solve for y

  3. adajiamcneal
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    how would i do that? would i divide 7 into -10?

  4. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    hint: |dw:1443461624375:dw|

  5. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    what is y?

  6. adajiamcneal
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    -3?

  7. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    I got: \[y = - \frac{7}{{10}}\]

  8. adajiamcneal
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    well yeah but would the slope be -3 / 10?

  9. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    in order to get the slope, we have to rewrite your equation in slope-intercept form, so we have to do the subsequent steps: 1) I add 10 y to both sides so I get this: \[\begin{gathered} - 3x - 10y + 10y = 7 + 10y \hfill \\ - 3x = 7 + 10y \hfill \\ \end{gathered} \]

  10. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    then I subtract 7 from both sides, so I get this: \[\begin{gathered} - 3x - 7 = 7 + 10y - 7 \hfill \\ - 3x - 7 = 10y \hfill \\ \end{gathered} \]

  11. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    finally I divide both side by 10: |dw:1443462108270:dw|

  12. adajiamcneal
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait so how do you divide the equation at the top with 10?

  13. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    it is simple, we can write this: \[y = - \frac{3}{{10}}x - \frac{7}{{10}}\]

  14. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    you are right, since the slope is the coefficient of x, which is: -3/10

  15. adajiamcneal
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Oh ok then i think i did it right :) thank you so much !! :) sop would the answer be A ?

  16. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    that's right!

  17. adajiamcneal
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    ok how can i rate you as a qualified helper haha

  18. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    you have to click on the orange button "Rate a Qualified Helper" at the top, I think

  19. adajiamcneal
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    oh duh... ok thanks again!

  20. Michele_Laino
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 2

    :)

  21. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.