Solve Quadratics by Graphing and Square Root

How many solutions does this function have?

• two

• one

• all real numbers

• no real solutions

Solve.

(x+3)²-5 = 9

• ±√14 -3

• √14 - 3

• ±11

• ±5

Tags

CCSS.HSA-REI.B.4B

What are the solutions to 2(x−7)² = 32 ?

• x = 7±√32

• x = ±√65

• x = 3 and x = 11

• x = -1 and x = 15

Tags

CCSS.HSA-REI.B.4B

The ________________ of 25 is ±5

• reciprocal

• square root

• integer

• ratio

Tags

CCSS.8.EE.A.2

Solve by taking the square root:

YOU MUST SHOW WORK FOR CREDIT!

x² = 49

• -7

• 7

• 49

• ±7

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root

YOU MUST SHOW WORK FOR CREDIT!

x² -4 = 77

• 9

• -9

• No Real Solutions

• ±9

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:

YOU MUST SHOW WORK FOR CREDIT!
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root:

YOU MUST SHOW WORK FOR CREDIT!

4x² = 100

• ±10

• ±25

• ±5

• 5

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

YOU MUST SHOW WORK FOR CREDIT!
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solutionb

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root

YOU MUST SHOW WORK FOR CREDIT!
-9p² = -576

• x = 8

• x = 64

• x = 8, -8

• x = 64, -64

Tags

CCSS.HSA-REI.B.4B