Find the equation of the axis of symmetry for the quadratic curve .
Answer and explanation
Correct answer: B.
- Step 1: The equation of the axis of symmetry of a parabola given by is given by . Here, and .
- Step 2: Calculate the value: . Hence, the line of symmetry is .
Answer
.
Why not the others: '' incorrectly omits the negative sign in the formula ; '' takes the value of without dividing by ; '' is the coefficient .
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