Mathematics for IGCSE & O level - Graphs Of Functions (Section 2 - No. 16)
For the equation y = -x² + 4, what is the vertex of the parabola?
(0, -4)
(0, 4)
(4, 0)
(-4, 0)
Explanation
The vertex of the parabola is (0, 4) because the standard form is y = a(x-h)² + k where (h,k) is the vertex. This equation can be written as y = -(x-0)² + 4. Therefore, (h,k) = (0,4).
Comments (0)
