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Sagot :
An exponential equation is represented as: [tex]\mathbf{y = ab^x}[/tex], where b represents rate
- Exponential growth: [tex]\mathbf{y = 5(7)^x}[/tex], [tex]\mathbf{y = 3(4.2)^x}[/tex] and [tex]\mathbf{y = 0.6(1.3)^x}[/tex]
- Exponential decay: [tex]\mathbf{k = 4.2(0.28)^x}[/tex]
- Neither: [tex]\mathbf{h(x) - 3x + 1.3}[/tex]
An exponential equation is said to represent growth, if the rate is greater than 1, while it represents decay if the rate is less than 1.
This means that:
[tex]\mathbf{y = 5(7)^x}[/tex], [tex]\mathbf{y = 3(4.2)^x}[/tex] and [tex]\mathbf{y = 0.6(1.3)^x}[/tex] represent exponential growth because 5, 4.2 and 1.3 are greater than 1
Also,
[tex]\mathbf{k = 4.2(0.28)^x}[/tex] represents exponential decay because 0.28 is less than 1
While
[tex]\mathbf{h(x) - 3x + 1.3}[/tex] is not an exponential function
Read more about exponential functions at:
https://brainly.com/question/11487261
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