GCSE Maths Practice: graphs-of-quadratic-functions

Question 7 of 10

Write the equation of a parabola given its vertex and opening direction.

\( \text{Write the equation of a parabola with vertex at (0, -1) and opens upward} \)

Choose one option:

Plug in h, k, a into vertex form to write the equation.

Vertex form: \(y = (x - h)^2 + k\). Substitute h = 0, k = -1, a = 1 for upward opening.