Solving Quadratics with Square Root

Solving Quadratics with Square Root

9th Grade

10 Qs

quiz-placeholder

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Solving Quadratics with Square Root

Solving Quadratics with Square Root

Assessment

Quiz

Mathematics

9th Grade

Hard

CCSS
HSA-REI.B.4B, 8.EE.A.2, HSN.CN.C.7

Standards-aligned

Created by

Anthony Clark

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Pick which equation I can use square roots to solve:

3x2 + 2x + 1 = 0

3x2 -27 = 0

3x2 + 2x = 1

4x + 10 = 0

Tags

CCSS.HSA-REI.B.4B

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

2x2 + 1 = 163

+ 81, -81

+162, -162

+9, -9

no solution

Tags

CCSS.8.EE.A.2

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve

2y2 - 5 = 93

Be careful, work from the outside in, get the squared term by itself, THEN take the square root.

y = 7

y = ±7

y = 24.5

y = ±24.5

Tags

CCSS.8.EE.A.2

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve by taking square roots: 5b2 + 4 = -41

Hint: what do you do when you have a NEGATIVE square root?

b = 9i, b = -9i

b = 3i, b = -3i

b = 9, b = -9

b= 3, b= -3

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

(x + 1) 2 = 25

Remember to add the ± as soon as you take the square root of both sides, THEN move the one over to get x by itself.

± 5

4  or  -6

-4  or  6

± 4

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

1 min • 5 pts

Use the square root property to solve the Quadratic Equation.
2(x - 4)2 = 200

x=±10

x=-14 and x=6

x=-6 and x=14

x=100

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Solve

2x2 +11= -9

±3i

±i√10

√10

±2i√5

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

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