An owl swoops down from its perch in a tree at 30 feet to catch field mice. It follows the function h=6t2 −24t+30

, where t is the time in seconds and h is the height in feet. Which of the following best interprets the vertex?(1 point)
Responses

(2,6)
left parenthesis 2 comma 6 right parenthesis

(6,2)
left parenthesis 6 comma 2 right parenthesis

(30,0)
left parenthesis 30 comma 0 right parenthesis

(0,30)
left parenthesis 0 comma 30 right parenthesis

1 answer

To interpret the vertex of the function \( h = 6t^2 - 24t + 30 \) correctly, we first need to find the vertex of this quadratic function.

The vertex of a quadratic function in the form of \( h = at^2 + bt + c \) can be calculated using the formula for the \( t \)-coordinate of the vertex:

\[ t = -\frac{b}{2a} \]

In your equation:

  • \( a = 6 \)
  • \( b = -24 \)

Now, substituting the values in:

\[ t = -\frac{-24}{2(6)} = \frac{24}{12} = 2 \]

Next, we calculate the corresponding \( h \) value by substituting \( t = 2 \) back into the function:

\[ h = 6(2)^2 - 24(2) + 30 \] \[ = 6(4) - 48 + 30 \] \[ = 24 - 48 + 30 \] \[ = 6 \]

Thus, the vertex is \( (2, 6) \).

Interpretation of the vertex: The vertex \( (2, 6) \) represents the minimum height of the owl during its dive, which occurs at \( t = 2 \) seconds, with a height of 6 feet.

From the responses you provided, the correct answer is:

(2, 6).