Unit 4 Test Practice

Simplifying Radicals

100

1A

11

200

1B

8i

300

1C

Sqrt5/3

400

1D

5sqrt5

500

1E

2sqrt7/7

Completing the square

100

2A

5, 25

200

2B

-3, 9

300

3A

x²+24x+144=(x+12)²

400

3B

x²-12x+36=(x-6)²

500

3C

x²-3x+9/4=(x-3/2)²

Solve using complete the square

100

4

x = -2 and x = -10, Real

200

5

x=7+-sqrt5

300

6

x=4+-3i

400

7

(x-3)²+13

500

16

(x-3)²+(y-4)=34

Circles

100

8

(x+5)²+(y-6)²=9

200

9

r=5

300

10 and 11

r=10, (x-3)²+(y-4)²=100

400

12

(x-5)²+(y+3)²=4

500

13, 14, 15

(-3, 2), r=5, graph