Illustrative Math - Algebra 1 - Unit 7 - Lesson 20 - Formative Library | Library

1

1.

Decide whether each number is rational or irrational.

10
\frac{4}{5}
\sqrt{4}
\sqrt{10}
-3
\sqrt \frac{25}{4}
\sqrt{0.6}

Rational
Irrational

F.IF.7.a

N.RN.3

A.REI.4.b

8.NS.1

1

2.

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

F.IF.7.a

N.RN.3

A.REI.4.b

8.NS.1

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3.

1

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1

5.

1

6.

1

7.

1

8.

1

9.

1

10.

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

		(x-\frac{9}{2})^{2}=\frac{83}{4}
		(x-\frac{3}{7})^{2}=\frac{10}{4}
		(x-2.5)^{2}=17.25
		(x-0.05)^{2}=0.002
		(x-3.2)^{2}=19.14
		(x-0.605)^{2}=6.646025

F.IF.7.a

N.RN.3

A.REI.4.b

8.NS.1

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11.

1

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1

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1

14.

1

15.

Which quadratic expression is in vertex form?

x^{2}-6x+8

(x-6)^{2}+3

(x-3)(x-6)

(8-x)x

F.IF.7.a

N.RN.3

A.REI.4.b

8.NS.1

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16.

1

17.

1

18.

This lesson is from Illustrative Mathematics. Algebra 1, Unit 7, Lesson 20. Internet. Available from https://curriculum.illustrativemathematics.org/HS/teachers/1/7/20/index.html ; accessed 26/July/2021.

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