Question

The graph shows the heights, y (in centimeters), of a plant after a certain number of weeks, x. Linda drew the line of best fit on the graph.

What would most likely be the approximate height of the plant after 7 weeks?

A. 4.8 centimeters

B. 14.4 centimeters

C. 16.5 centimeters

D. 19.5 centimeters

Answer 1

Answer:

(A)4.9

Step-by-step explanation:

First find the slope of the graph (m)

m=$\frac{y-y1}{x-x1}$

(x,y)=(2,0)

(x₁,y₁)=(4,5)

⇒m=$\frac{0-5}{2-4}$=$\frac{-5}{-2}$=2.5

now for 7th week

take y₁=7 & x₁=α

∴m=$\frac{y-y1}{x-x1}$= -7/(a-2)=2.5

⇒a=4.8 cm

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Answer 2

Answer:

this answer is A

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