Recognize Constant Rate Changes
Algebra · Flashcards · Recall
ALGEBRA · FLASHCARDS
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QUESTION
Which model matches constant rate:
y
=
y
0
+
r
t
y=y_0+rt
y
=
y
0
+
r
t
or
y
=
y
0
(
1
+
r
)
t
y=y_0(1+r)^t
y
=
y
0
(
1
+
r
)
t
?
QUESTION
Choose the word that signals constant rate: "per" or "percent"?
QUESTION
Which expression represents a constant rate of change:
y
=
4
x
+
9
y=4x+9
y
=
4
x
+
9
or
y
=
4
x
+
9
y=4^x+9
y
=
4
x
+
9
?
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ANSWER
y
=
4
x
+
9
y=4x+9
y
=
4
x
+
9
. Linear has constant rate; exponential has variable rate.
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