Use the graph to fill in the missing elements of the exponential growth equation.

the main points are (0,4) (1,7.6) (2,14.44)
(1 point)
y=_(_)^x

1 answer

To fill in the missing elements of the exponential growth equation in the form \( y = a(b)^x \), we'll use the provided points from the graph.

From the points given:

  1. At \( x = 0 \), \( y = 4 \).
    • This gives us that \( a = 4 \) because \( y = a(b)^0 = a \cdot 1\).

To find \( b \), we can use another point. Let's take the point \( (1, 7.6) \):

\[ y = 4(b)^1 \] \[ 7.6 = 4b \] \[ b = \frac{7.6}{4} = 1.9 \]

Now, let's check the other point \((2, 14.44)\) to verify if the values are consistent:

\[ y = 4(b)^2 \] Substituting \( b = 1.9 \): \[ y = 4(1.9)^2 \] Calculating \( (1.9)^2 = 3.61 \): \[ y = 4 \cdot 3.61 = 14.44 \]

Since the calculated value matches the point \( (2, 14.44) \), our values are correct.

Thus, the exponential growth equation can be filled in as:

\( y = 4(1.9)^x \)