intro to graphing exponentials mon oct 22 nd / tue oct 23 rd
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Intro to Graphing Exponentials
Mon Oct 22nd / Tue Oct 23rd
RememberExponent Rules…
• 33
• 5-2
Vocabulary• Exponential Function – has the form y = abx,
where a ≠ 0 and the base b is a positive number other than 1.
• If a > 0 and b > 1, then the function y = abx is an Exponential Growth Function, and b is called the Growth Factor
• Exponential Decay Function – has the form y = abx, where a > 0 and
0 < b < 1 (this means b is a fraction)
Ex 1) Growth
2xy
Ex 2) Decay
1
2
x
y
Ex 3)
2 3xy
Ex 4)
123
x
y
Growth vs Decay
Ex 5)3
2
x
y
Try these
• 6)
• 7)
• 8)
3xy
122
x
y
2 2xy
Ex 6)3xy
X Y
-2
-1
0
1
2
Ex 7)122
x
y
X Y
-2
-1
0
1
2
Ex 8)
X Y
-2
-1
0
1
2
2 2xy
Graphing y = abx-h+k• h – moves graph left and right (opposite)
• k – moves graph up and down
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