Topic 5 Practice Test

Use square roots to solve the equation x² = - 49

Select any solutions that apply (2 of them do!)

• 7

• -7

• 7 i

• 7 i²

• -7 i

Write the product (6+i)(6-i) in the form a+bi

• 36 - i

• 36 - i²

• 37

• 35

• 12

• Yes, it actually reaches a height of 52.9 feet.

• Yes, it barely makes it to 12 feet, but it does make it.

• No, it reaches a height of 3 feet.

• No, it only reaches a height of about 6 feet.

• 4, -4
• 16, -16
• 2, -2
• 8, -8

• 0

• 1

• 2

• 3