Solving multi-step problems using quadratic equations in one variable

Solving multi-step problems using quadratic equations in one variable

9th - 12th Grade

20 Qs

quiz-placeholder

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Solving multi-step problems using quadratic equations in one variable

Solving multi-step problems using quadratic equations in one variable

Assessment

Quiz

Mathematics

9th - 12th Grade

Hard

CCSS
HSA-REI.B.4B

Standards-aligned

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20 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Tags

CCSS.HSA-REI.B.4B

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What error occurred when solving by square root method?


 25x2=6425x^2=64  


 x2=6425x^2=\frac{64}{25}  

 x2=6425\sqrt{x^2}=\sqrt{\frac{64}{25}}  

 x ={85}x\ =\left\{\frac{8}{5}\right\}    


Answer should always be in decimal form

Forgot to add the  ±\pm  sign

Cannot use the square root method when the "a" value is odd

Tags

CCSS.HSA-REI.B.4B

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Solve by the Extraction of Roots method: x2 = 16

± 4

± 8

4

8

Tags

CCSS.HSA-REI.B.4B

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

 x2=20x^2=20  Using the square root property, find the roots of the quadratic equation.

 x={±25}x=\left\{\pm2\sqrt{5}\right\}  

 x={±52}x=\left\{\pm5\sqrt{2}\right\} 

 x={2, 5}x=\left\{2,\ 5\right\}  

 x={5,2}x=\left\{-5,-2\right\} 

Tags

CCSS.HSA-REI.B.4B

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What would be the most efficient method to solve the following Quadratic?

81x2 - 121 = 0

(Remember: this considers what most people would claim is the fastest and easiest method)

Difference of Two Squares Factoring

Quadratic Formula

Completing the Square

Factoring by Finding 2 numbers that multiply to "a⋅c" and add to "b", and grouping.

Tags

CCSS.HSA-REI.B.4B

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Solve by the Extraction of Roots method: -5x2 = -50

± 5

± 10

± √10

-10

Tags

CCSS.HSA-REI.B.4B

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the solution set for the quadratic equation x216=0x^2-16=0 

{4}

{-4, 4}

{256}

{-256, 256}

Tags

CCSS.HSA-REI.B.4B

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