GCSE Maths Practice: graphs-of-quadratic-functions

Question 9 of 10

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

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\( \text{What is the equation of a quadratic with vertex at } (1, 4) \text{ that opens upwards?} \)

Choose one option:

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

Vertex form: \(y = a(x - h)^2 + k\). Substitute \(h=1, k=4\) and \(a=1\) for upward opening.