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Vertex of parabola
x = −b / 2a, y = −D / 4a
Where: a = first term / coefficient a, b = coefficient b, x = Vertex of parabola
Solved example
Given: a = 7, b = 5
Find: x (Vertex of parabola)
- Formula: x = -b/(2·a)
- Substitute the values: x = -5/(2·7)
- Result: x = -0.357143
Answer: x = -0.357143
Calculator
How to calculate Vertex of parabola
- Write down the formula: x = −b / 2a, y = −D / 4a.
- Note the known values (a, b).
- Substitute them and simplify to find x.
- Use the calculator above to solve for any letter.
Frequently asked questions
What is the formula for Vertex of parabola?
The formula is x = −b / 2a, y = −D / 4a, where a = first term / coefficient a, b = coefficient b, x = Vertex of parabola.
What is Vertex of parabola when a = 7, b = 5?
x = -0.357143. Substitute the values into x = −b / 2a, y = −D / 4a and simplify.