Direct proportionality is the type of proportionality where an increase in one quantity or variable causes a corresponding increase in another quantity.
Therefore; y varies directly as x
Hence; y α x
y =k x where k is a constant
if y= 28 and x = 7 , then k = 28/4 =4
hence, y = 4 k
when x = 4, then y= 16
Y=-2x-6
reflect over the y axis
down one
to the left 4
Add all of the students who like the ice creams and subtract from 147 :)
This is already written with positive exponent
Rachel and sarah spent a total of $33.65
so they have $16.35 left for return trip
~~~hope this helps~~~ ~~davatar~~
