Question

Complete the table of values for the equation y=x2-2x-1

Answer 1

• y = x^2 - 2x - 1

1. If x = -2, then

y = (-2)^2 - 2(-2) - 1

= 4 + 4 - 1

= 7

2. If x = 0, then

y = (0)^2 - 2(0) - 1

= 0 - 0 - 1

= -1

3. If x = 2, then

y = (2)^2 - 2(2) - 1

= 4 - 4 - 1

= -1

4. If x = 3, then

y = (3)^2 - 2(3) - 1

= 9 - 6 - 1

= 2

Hope you could understand.

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