Question

Draw the graph of following function. Y=X²- 2X​

Answer 1

Plot 3 points

• (0,0)
• (1,-1)
• (2,0)

Explanation:

Let plot the vertex

`- (b)/(2a)`

`- ( - 2)/(2) = 1`

Plug this value in

`y = {1}^(2) - 2 = - 1`

So our minimum point is at (1,-1).

This also means our line of symmetry occurs about x=1.

Let use some point like 0.

`0 = {0}^(2) - 0`

So this means point (0,0) is a point. Since 1 is the line of symmetry, (2,0) is a point.