Scientific Notation and Identifying Functions

The radius of the planet Neptune is approximately 15,300 miles. How is this number of miles written in scientific notation?

• 0.153 x 10⁵

• 0.153 x 10 ^-5

• 1.53 x 10⁴

• 1.53 x 10 ^-4

Tags

CCSS.8.EE.A.3

There are a total of 463,100 books in a library. What is the value of the exponent when this number is written in scientific notation?

The exponent is ________.

Tags

CCSS.8.EE.A.3

The area of a piece of land is 4,951,000 square meters. How is this number of square meters written in scientific notation?

• 4.951 x 10⁶

• 4.951 x 10 ^-6

• 4,951 x 10³

• 4,951 x 10 ^-3

Tags

CCSS.8.EE.A.3

The density of oxygen is 0.001429 grams per cubic centimeter. How is this number written in scientific notation?

• 1.429 x 10³

• 1.429 x 10²

• 1.429 x 10 ^-3

• 1.429 x 10 ^-2

Tags

CCSS.8.EE.A.3

Jamie used a microscope to measure the diameter of a hair. She found that the diameter of the hair was 0.000072 meter. How is this number written in scientific notation?

• 7.2 x 10 ^-5

• 7.2 x 10⁶

• 7.2 x 10⁵

• 7.2 x 10 ^-6

Tags

CCSS.8.EE.A.3

Based on their orbits, the closest that the moon and Earth will ever get to each other is approximately 2.256 x 10⁵ miles. How is this number of miles written in standard form?

Which mapping represents y as a function of x?

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Tags

CCSS.8.F.A.1

Which graph does NOT represent y as a function of x?

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Which set of ordered pairs represents y as a function of x?

• { (4, 17), (2, 6), (1, 3), (1, 10) }

• { (-7, 2.9), (-15, 5.9), (-15, 8.9), (-7, 11.9) }

• { (11.1, 7), (5.1, 4), (12.1, 5), (6.1, 7) }

• { (1, -3), (2, -4), (1, -5), (6, -7) }

Tags

CCSS.8.F.A.1

Which representation shows y as a function of x?

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