The rate at which a plant grows is constant. At the 3rd week it is 12 inches tall and at the 5th week it is 20 inches tall. If this information is plotted on a coordinate plane, what is the y-coordinate of the the point (1, y)?
A. 1
B. 2
C. 4
D. 9
I think its C but im not sure @Ganpat

Question

The rate at which a plant grows is constant. At the 3rd week it is 12 inches tall and at the 5th week it is 20 inches tall. If this information is plotted on a coordinate plane, what is the y-coordinate of the the point (1, y)?
A. 1
B. 2 
C. 4
D. 9 
I think its C but im not sure @Ganpat

cwrw238 · Answer

Hint: in 2 weeks it has grown 8 inches

ganpat · Answer

|dw:1419000979422:dw|

roughly...

in 2 weeks it has grown by 8 inches.. so how many inches in a week ?

anonymous · Answer

1@ganpat

ganpat · Answer

yup... but did u understood how to calculate ?

u can even draw a rough graph so that you can get a approx figuree

anonymous · Answer

yes so its A

anonymous · Answer

@Ganpat

ganpat · Answer

Noo.. its not 1...

check out ur options and compare to graph...

anonymous · Answer

Its D @Ganpat

ganpat · Answer

no dear.. if |dw:1419001550766:dw|

It says (1,y)... what is value of y ???