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43 votes
43 votes
To find the vertex, What must you do with the value you get from the formula −b/2a

the options are
A. That value is your vertex
B. I have no idea, I haven't listened all week
C. Plug it into original equation
D. Plug it into quadratic formula

User Penguin
by
3.0k points

2 Answers

22 votes
22 votes

Final answer:

To find the vertex, you need to plug the x-coordinate obtained from the formula -b/2a into the original equation.

Step-by-step explanation:

The value obtained from the formula -b/2a is the x-coordinate of the vertex of a quadratic equation. This value represents the axis of symmetry of the parabola. To find the vertex, you need to substitute this x-coordinate back into the original equation to find the corresponding y-coordinate. Therefore, the correct option is C: Plug it into the original equation.

User Damien Sawyer
by
2.8k points
18 votes
18 votes

Answer:

C.

Step-by-step explanation:

You would need to plug it into your example equation. This is because you would need the slope of that equation. Hope this helped you out!!!

User Mohammad Mirsafaei
by
2.9k points
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