Represent Proportional Relationships by Equations
Middle School Math · Flashcards · Recall
MIDDLE SCHOOL MATH · FLASHCARDS
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QUESTION
What is the equation for earnings
E
E
E
proportional to hours
h
h
h
at hourly rate
r
r
r
?
QUESTION
Identify the constant of proportionality in the equation
t
=
p
n
t = pn
t
=
p
n
(between
t
t
t
and
n
n
n
).
QUESTION
What does the constant
k
k
k
represent in the proportional equation
y
=
k
x
y = kx
y
=
k
x
?
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ANSWER
k
k
k
is the constant of proportionality (unit rate). It's the ratio
y
x
\frac{y}{x}
x
y
that stays constant.
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