Where is the location of the vertex of the parabola on a coordinate grid?
y=x^2+2x-3
a. above the x-axis
b. below the x-axis
c. on the x-axis
d. on the y-axis

 The correct option is (B) below the X-axis.

Step-by-step explanation:  We are to select the correct location of the vertex of the following parabola on a co-ordinate grid :

We know that

the standard equation of a parabola with vertex at the point (h, k) is given by

From equation (i), we have

Comparing the above equation with the standard equation of a parabola, we see that that the co-ordinates of the vertex are (-1, -4).

Since the point (-1, -4) lies in the Quadrant III that is below the X-axis.

Therefore, the vertex of the given parabola lies below the X-axis.

Option (B) is CORRECT.

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