SOLVE RADICAL EQUATIONS

Chapter 7 Day 3

Book Section 7.5

Get 2 grids for the 2 shift problems!

1. Solve Radical Equations

✓

Square both sides!

Be sure to check solutions by subbing in -1 because squaring both sides can cause extraneous solutions

2. Solve Radical Equations

62217 xx

✓

Be sure to check solutions by subbing in -1 because squaring both sides can cause extraneous solutions

Square both sides!

62417 xx

24817 xx

x77

3. Solve Other Equations

✓

Cube both sides!

4. Solve Other Equations

35322 3

4

x

3222 3

4

x

82 x

162 3

4

x

4

3

162 x

}10,6{x

5. Solve Other Equations

✓x= ¾ x = -1

4 4

6. Sketch y = Domain:

Range:

,0 ,0

x y

0 0

1 1

4 2

9 3

7. Sketch y = Domain:

Range:

,

,x y

-8 -2

-1 -1

0 0

1 1

8 2

8. Graph y = 433

1x

Domain:

Range:

,3 ,4

x y

0 0

1 1

4 2

9 3

9. Graph y = 212 xDomain:

Range:

,1]2,(

x y

0 0

1 1

4 2

9 3

10. Graph y = 222 3 xDomain:

Range:

All reals x

All reals y

x y

-8 -2

-1 -1

0 0

1 1

8 2

11. Find x if f(x) = 10

242

1 xy

242

110

x

2420

x

24

20 x

24

4002

x

2

9600

x