A community for students.

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

automaticloveletter

  • one year ago

What would most likely be the approximate height of the plant after 7 weeks? 4.8 centimeters 14.4 centimeters 16.5 centimeters 19.5 centimeters

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

    http://prntscr.com/7uzkkn

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

    one approach find the slope of the line change in y/ change in x slope is the same for any 2 points on that line using one of the points and (7, y) solve for y the height when x = 7

  3. automaticloveletter
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @triciaal I'm confused

  4. automaticloveletter
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @ChillOut

  5. ChillOut
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    We have a linear equation. The form of a linear equation is given by y= mx + b, where "m" is the angular coefficient and "b" the y intercept. "b" is given by \(\frac{ \Delta y }{ \Delta x }\)

  6. ChillOut
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Moving on... "b", the "y intecept" is 2 as we can see from graph |dw:1437427126952:dw|

  7. ChillOut
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    So... now to find the coefficient "m". We need to use known points, and the easiest ones for that are (0,2) and (5,4). We do \(\frac{ \Delta y }{ \Delta x }\) and we have \[\frac{ 4-2 }{ 5-0 }=\frac{ 2 }{ 5 }\] Now we need to plug m and b in the equation... \[\frac{ 2 }{ 5 }x +2\] This is the equation for this line. After this, we plug 7 in the "x".

  8. ChillOut
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    And we will have \[\frac{ 2 }{ 5 }*7 +2=\frac{14}{5}+2 = \frac{24}{5}=4.8 cm\]

  9. ChillOut
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Did you get it? :)

  10. automaticloveletter
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Got it

  11. ChillOut
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    All right then. If you need any help I'll be back later. Just ask ;)

  12. ChillOut
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    Oh, and in my first response it should be "m" is given by dy/dx. major mistake there by me.

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

    @automaticloveletter you are confused on finding the slope of the line even after telling you it's the change in y / change in x ?

  14. automaticloveletter
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    @triciaal Yeah, well I got it now. Thanks anyways.

  15. 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.