Help I really need the answer to this.
2 answers:
You might be interested in
u - v = <5, 2> - <2, - 3> = <5 - 2, 2 + 3> = <3, 5>
given a vector <u, v> then the magnitude is √ (u² + v² ) and it's angle of direction is
θ = (
)
thus the magnitude of <3, 5> = √(3² + 5²) = √34 ≈ 5.83 ( to 2 dec. places )
Θ = (
) = 59.04° ( to 2 dec. places )
<h3><u>Explanation</u></h3>
- Method 1 (Formula)
The vertex of Parabola is the maximum/minimum point depending on the value of a.
- Find Vertex
<u>h-value</u>
<u>k-value</u>
The minimum value is the value of k. Therefore the minimum value is - 49/4 at x = -5/2.
- Method 2 (Derivative)
This is Calculus method. We simply differentiate the function then substitute y' = 0.
- Differentiate Function
Substitute f'(x) = 0
Substitute x = -5/2 in the original equation.
<u></u>