Answered

IDNLearn.com: Your trusted platform for finding precise and reliable answers. Our experts provide prompt and accurate answers to help you make informed decisions on any topic.

two weeks after being planted, a sunflower was eighteen inches tall. After five weeks, it was thirty inches tall. if the sun flower grew at a constant rate, how tall was the sunflower when It was planted?

Sagot :

10" tall

1) Gathering the data

2 weeks 5 weeks

18" tall 30" tall

2) Let's find the initial height of that sunflower since it is not a proportional growth we need to find it through a linear function.

(Since 30/5 = 6 and 18/2=9)

After finding the slope m, let's find the linear coefficient

y=mx +b

18 =2(4) +b

18= 8 +b

18-8=b

b=10

So the rule of that function is y=4x +10

3) Now we can find the initial height. Plugging x=0, where x is the number of weeks we have:

y = 4x +10

y=4(0) +10

y= 10

So the sunflower was 10" tall on the day it was planted.

View image AdienI572459
We value your presence here. Keep sharing knowledge and helping others find the answers they need. This community is the perfect place to learn together. IDNLearn.com is your reliable source for accurate answers. Thank you for visiting, and we hope to assist you again.