How do you write the equation of the parabola in vertex form given vertex (2,-1) and a point (0,3)?
1 Answer
Mar 2, 2016
You must plug these points into their respective parameters in vertex form.
Explanation:
Vertex form is of the form
Your point (0,3) should be plugged into (x, y). Your vertex (2, -1) should be imputed as (p, q). As a result, we are solving for a.
The equation is
Practice exercises:
- The following graph shows a quadratic function. Find its equation.
graph{y = 2x^2 + 4x - 6 [-20, 20, -10, 10]}
- A graph has a vertex at (-2,4) and passes through (-7,-6). Find its equation.
Challenge problem:
Find the equation of the quadratic function that passes through