To write the equation of a parabola in vertex form, we use the formula:
\[ f(x) = a(x - h)^2 + k \]
where \( (h, k) \) is the vertex of the parabola and \( a \) is the leading coefficient.
Given the vertex \( (4, 7) \) and the leading coefficient \( a = 33 \), we can substitute these values into the formula.
Thus, the equation of the parabola is:
\[ f(x) = 33(x - 4)^2 + 7 \]
Summary:
- Equation: \( f(x) = 33(x - 4)^2 + 7 \)
- Vertex: \( (4, 7) \)
- Range: Since the leading coefficient \( 33 \) is positive, the parabola opens upwards. The minimum value of \( f(x) \) occurs at the vertex \( k = 7 \). Therefore, the range is:
\[ \text{Range: } [7, \infty) \]
So, your final answer would be:
- Equation: \( f(x) = 33(x - 4)^2 + 7 \)
- Vertex: \( (4, 7) \)
- Range: \( [7, \infty) \)