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What is the vertex of y=x^2-7​

User Lfalin
by
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1 Answer

3 votes

Answer:

(0,-7)

Explanation:

The graph y=x^2 - 7 is a parabola, and all parabolas can be written in the form y = ax^2 + bx + c.

The expression -b/(2a) gives the vertex's x coordinate, and the y coordinate can be found by plugging in x.

For your equation, -b/(2a) = -0 / 2 = 0, so the x coordinate is 0.

At x=0, y = -7

Check if the answer makes sense:

Since there is no horizontal (left or right) translation, and only vertical (up down) translation, the x coordinate of the vertex should be 0.

User Pencho Ilchev
by
7.5k points

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