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Kelso Math: Algebra 2B - Unit 1 - Lesson 9

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Last updated about 5 years ago
16 questions
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Question 1
1.

Decide whether each number is rational or irrational.

  • -3
  • 10
  • \frac{4}{5}
  • \sqrt{4}
  • \sqrt{0.6}
  • \sqrt \frac{25}{4}
  • \sqrt{10}
  • Rational
  • Irrational
Question 2
2.

Here are the solutions to some quadratic equations. Select all solutions that are rational.

1
1
1
1
1
1
1
1
1
1
1
Question 13
13.

Put the steps in order to solving the equation:

1
Question 15
15.

Match each equation to an equivalent equation with a perfect square on one side.

Draggable itemarrow_right_altCorresponding Item
x^{2}+9x=\frac{1}{2}
arrow_right_alt
(x-\frac{9}{2})^{2}=\frac{83}{4}
x^{2}-5x=11
arrow_right_alt
(x-\frac{3}{7})^{2}=\frac{10}{4}
x^{2}+0.1x-0.0005=0
arrow_right_alt
(x-2.5)^{2}=17.25
x^{2}-\frac{6}{7}x=\frac{1}{49}
arrow_right_alt
(x-0.05)^{2}=0.002
x^{2}+1.21x=6.28
arrow_right_alt
(x-3.2)^{2}=19.14
x^{2}+6.4x-8.9=0
arrow_right_alt
(x-0.605)^{2}=6.646025
Question 16
16.

Review from Tri 1: Which quadratic expression is in vertex form?

Question 3
3.

Solve the equation. Click on the keyboard icon in the answer box to get the "plus or minus" and "square root" signs if needed.

Answer format: x=___ or x=___

Question 4
4.

Are the solutions to #3 rational or irrational?

Question 5
5.

Solve the equation. Click on the keyboard icon in the answer box to get the "plus or minus" and "square root" signs if needed.

Answer format: x=___ or x=___

Question 6
6.

Are the solutions to #5 rational or irrational?

Question 7
7.

Solve the equation. Click on the keyboard icon in the answer box to get the "plus or minus" and "square root" signs if needed.

Answer format: x=___ or x=___

Question 8
8.

Are the solutions to #5 rational or irrational?

Question 9
9.

Solve the equation. Click on the keyboard icon in the answer box to get the "plus or minus" and "square root" signs if needed.

Answer format: x=___ or x=___

Question 10
10.

Are the solutions to #5 rational or irrational?

Question 11
11.

Based on the graph, what are the solutions?

Question 12
12.

Can you tell whether they are rational or irrational? Select the BEST response.

Question 14
14.

Are the solutions from #13 rational or irrational?