Sangeetha Pulapaka
0

Step 1: Plot the parabola

Remember how to plot a parabola when two or three points are given

https://www.qalaxia.com/viewDiscussion?messageId=5cec842bf31e6e22f6b0f210

Step 2: Write the x-coordinate of the vertex

The x-coordinate of the vertex is 4

Step 3: Plug in x = 4 in the equation of the parabola to get the y coordinate of the vertex

y = 2x^{2}-16x +30

y = 2\times 4^{ 2} - 16 \times 2 +30

y = 32 - 64 + 30

y = -2

The vertex is (4,-2)