Today in Pre-Calculus Go over homework Chapter 8 – need a calculator

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Today in Pre-Calculus Go over homework Chapter 8 – need a calculator

Parabolas Prove that the graph of y2 + 2y – 8x – 7 = 0 is a parabola. Then give the vertex, focal width, focal length, directrix and axis.

Writing an equation of a parabola

Ellipses Prove that the graph of x2 + 4y2 + 2x + 8y + 1 = 0 is an ellipse. Find the center, vertices and foci.

Writing the equation

Hyperbolas Prove that the graph of 9x2 – 4y2 – 18x + 8y + 41 = 0 is an hyperbola. Find the center, vertices and foci.

Writing the equation

Additional Practice Pg 696: 13-20 all 21-23all – also identify vertices, foci, center 37-47odd