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Jocelyn and Deondre were asked by their teacher to graph two equations. Jocelyn was asked to graph the...

Jocelyn and Deondre were asked by their teacher to graph two equations. Jocelyn was asked to graph the equation y = (x + 6)² − 2. Deondre's teacher asked him to graph the equation y = −(x + 1)² − 2 and describe the transformation of his graph from Jocelyn's graph. How should Deondre correctly respond to his teacher? Make sure to include mathematical reasoning.

Answer

Deondre should say: Shift Jocelyn’s graph 5 units to the right, then reflect it across the horizontal line y = −2.

Jocelyn’s parabola has vertex (−6, −2) and opens upward. Shifting right 5 units gives y = (x + 1)² − 2, with vertex (−1, −2). Reflecting across y = −2 reverses the squared term’s sign, producing y = −(x + 1)² − 2. Deondre’s parabola therefore has vertex (−1, −2) and opens downward.

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