Question

What is the line of symmetry of the equation y = x² + x + 1.

A. x = 0
B. x = -1/2
C. x = 1/2
D. x = -1

Answer 1

The line of symmetry of the equation y = x² + x + 1 is x = -1/2(option b).

Step-by-step explanation:

The line of symmetry of the equation y = x² + x + 1 is x = -1/2(option b).

To find the line of symmetry of a quadratic equation in the form y = ax² + bx + c, you can use the formula x = -b / (2a). In this equation, a = 1 and b = 1. Plugging these values into the formula gives:

x = -1 / (2 * 1) = -1/2

Therefore, the line of symmetry is x = -1/2.