A community for students.
Here's the question you clicked on:
 0 viewing
ayee_ciera
 one year ago
A candle is 17 in. tall after burning for 3 hours. After 5 hours, it is 15 in. tall. Write a linear equation to model the relationship between height h of the candle and time t. Predict how tall the candle will be after 8 hours.
ayee_ciera
 one year ago
A candle is 17 in. tall after burning for 3 hours. After 5 hours, it is 15 in. tall. Write a linear equation to model the relationship between height h of the candle and time t. Predict how tall the candle will be after 8 hours.

This Question is Closed

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0so can you find the slope the 2 points are (3, 17) and(5, 15)

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0once you know the slope use the slope point formula to get the equation of the line.

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0great so you have a point (3, 17) and slope of 1 so the equation is y = x + b substitute y = 17 and x = 3 to find b

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0you many need to write it as h = t + b and b is the y intercept or initial height

ayee_ciera
 one year ago
Best ResponseYou've already chosen the best response.0@campbell_st i dont get it

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0ok... so if you use the point slope formula \[y  y_{1} = m(x  x_{1})\] using m = 1 and (3, 17) y  17 = 1(x  3) y  17 = x + 3 now you should be able to find the equation

campbell_st
 one year ago
Best ResponseYou've already chosen the best response.0if you use the slope intercept form of a line y = mx + b or using the slope m = 1 y = x + b you have a point and slope 17 = 1(3) + b so b = 20 so the equation is y = x + 20 so just substitute x = 8 to find the height after 8 hours

ayee_ciera
 one year ago
Best ResponseYou've already chosen the best response.0since the x is a negative should the 8 be negative as well
Ask your own question
Sign UpFind more explanations on OpenStudy
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
 Engagement 19 Mad Hatter
 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.