When a song is sold by an online music store, the store takes some of the money, and the singer gets the rest. The graph below shows how much money a pop singer makes given the total amount of money
brought in by one popular online music store from sales of the song.
200
$250.00
($1000, $200)
$200.00
Paid to Pop Star
$150.00
($600, $120)
$100.00
($200, $40)
$50.00
$0.00
$0.00
$200,00
$1,000.00 $1,200.00
$400.00 $600.00 $800.00
Sales by an Online Music Store
a. Is this sales from the online store proportional to the money paid to the popstar.

Yes

Step-by-step explanation:

It is because the line is a straight line meaning there is a straight slope (same)

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

6 cm

step-by-step explanation: