Answer:
(0,-7)
Step-by-step 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.
