Solving with Quadratics and Complex Numbers

• i

• 4

• 1

• -1

Tags

CCSS.HSN.CN.A.2

• 1

• i

• -1

• -i

Tags

CCSS.HSN.CN.A.2

• A

• B

• C

• D

Tags

CCSS.HSN.CN.A.3

• 1

• -i

• i

• -1

Tags

CCSS.HSN.CN.A.1

• i

• -i

• -1

• 1

Tags

CCSS.HSN.CN.A.1

What are the zeros of the function f(x) = x² + 64?

• -8 and 8

• -8i and 8i

• (-√8) i and (√8) i

• -√8  and √8

• A

• B

• C

• D

Tags

CCSS.HSN.CN.A.2

• 1

• i

• -1

• -i

Tags

CCSS.HSN.CN.A.2

To find out when an object hits the ground, after we put in 0 for h, we can use this to calculate the time it hits the ground: 

• -b/(2a) 

• Quadratic Formula 

• Pythagorean Theorem

• Just square root everything