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College Algebra & Trigonometry, 2018a

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276 CHAPTER 5. CONIC SECTIONS - CIRCLE AND PARABOLA<br />

Exercises 5.2(b)<br />

Express each equation in standard form and determine the vertex, focus and directrix<br />

of each parabola.<br />

Standard form:<br />

4p(y − k) =(x − h) 2<br />

4p(x − h) =(y − k) 2<br />

1) (x − 2) 2 =8(y +1) 2) (x +5) 2 = 12(y − 3)<br />

3) (y +1) 2 =6(x − 2) 4) (y +4) 2 = 10(x +1)<br />

5) (x +3) 2 = −5(y +2) 6) (x − 4) 2 = −7(y − 6)<br />

7) (y +8) 2 = −6(x +4) 8) (y − 3) 2 = −9(x +4)<br />

9) x 2 +8x + y +6=0 10) x 2 +6x + y − 3=0<br />

11) y 2 +6y +8x +1=0 12) y 2 +8y − 4x +8=0<br />

13) x 2 +4x − 3y +7=0 14) x 2 +2x − 6y − 11 = 0<br />

15) y 2 +6y − 4x +4=0 16) y 2 − 4y +3x +9=0

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