Linear & Exponential Growth
PSAT Math · Flashcards · Application
PSAT MATH · FLASHCARDS
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QUESTION
If
y
=
5
⋅
2
x
y=5\cdot 2^x
y
=
5
⋅
2
x
, what is
y
y
y
when
x
=
3
x=3
x
=
3
?
QUESTION
What is the constant difference for the sequence
4
,
9
,
14
,
19
,
…
4,9,14,19,\dots
4
,
9
,
14
,
19
,
…
?
QUESTION
Find the slope of the line
4
y
=
−
2
x
+
8
4y=-2x+8
4
y
=
−
2
x
+
8
.
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ANSWER
m
=
−
1
2
m=-\frac{1}{2}
m
=
−
2
1
. Rewrite as
y
=
−
1
2
x
+
2
y=-\frac{1}{2}x+2
y
=
−
2
1
x
+
2
to identify slope.
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