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Indira makes a graph to show how many

pages of her graphic novel she can illustrate
each day.
What is the constant of proportionality for
the relationship between pages and days?

Indira makes a graph to show how many pages of her graphic novel she can illustrate-example-1
User Adinia
by
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1 Answer

2 votes

Answer:

A. ¾

B. 7½ pages

Explanation:

A. Constant of proportionality, k, =
(y)/(x)

In this case, y = pages, while x = days.

Take any coordinate pair to calculate the constant of proportionality, k. Let's use (3, 4).


k = (y)/(x) = (3)/(4)

Constant of proportionality = ¾.

B. Number of pages (y), Indira would read in 10 days (x).

Substitute x = 10 and k = ¾, into
k = (y)/(x)


(3)/(4) = (y)/(10)

Multiply both sides by 10


(3)/(4)*10 = (y)/(10)*10


(3)/(2)*5 = y


(15)/(2) = y


7(1)/(2) = y

Number of pages Indira can read in 10 days is 7½ pages.

User Mbtamuli
by
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