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Use a calculator to find the equation which models the exponential data given by the table. ( the x is an exponent btw)

A y = 1.5(3)x
B y = 3(1.5)x
C y = 3(0.5)x
D y = 0.5(3)x

1 Answer

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A) y = 1.5(3)^x

If we plug in x = 0, we get:

y = 1.5(3)^0 = 1.5

However, from the table we can see that when x = 0, y = 2. Therefore, option A is not correct.

B) y = 3(1.5)^x

If we plug in x = 1, we get:

y = 3(1.5)^1 = 4.5

This matches the second value in the table. Let's check the other values:

- When x = 0, y = 3 (matches the first value)
- When x = 2, y = 6.75 (matches the third value)

Therefore, option B is correct.

C) y = 3(0.5)^x

If we plug in x = 0, we get:

y = 3(0.5)^0 = 3

However, from the table we can see that when x = 0, y = 2. Therefore, option C is not correct.

D) y = 0.5(3)^x

If we plug in x = 1, we get:

y = 0.5(3)^1 = 1.5

This does not match the second value in the table. Therefore, option D is not correct.

Therefore, the correct equation that models the exponential data given by the table is:

y = 3(1.5)^x.
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