Practice Test B

  1. Find the standard form of the equation of the parabola with focus (10, 0) and directrix x=10.

    1. y2=10x

    2. y2=40x

    3. x2=40y

    4. y2=40x

  2. Convert the equation y24y5x+24=0 to the standard form for a parabola by completing the square.

    1. (y+2)2=5(x4)

    2. (y2)2=5(x4)

    3. (y+2)2=5(x4)

    4. (y2)2=5(x+4)

  3. Find the focus and directrix of the parabola with equation x=7y2.

    1. focus: (128, 0); directrix: x=128

    2. focus: (0,128); directrix: y=128

    3. focus: (128, 0); directrix: x=128

    4. focus: (17, 0) directrix: x=17

  4. Graph the parabola with equation y2=7x.

  5. Find the vertex, focus, and directrix of the parabola with equation (x3)2=12(y1).

    1. vertex: (3, 1); focus: ...

Get College Algebra, 4th Edition now with the O’Reilly learning platform.

O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.