Formative Assessment Assignment - Christopher LaVoy

What subset of the Real Number System

are the following numbers?

• Whole Numbers

• Irrational Numbers

• Rational Numbers

• Integers

Answer explanation

These numbers are Rational Numbers because they can be expressed as terminating or repeating decimals and as fractions represented by dividing two integers.

Tags

8.AF.A

• 0.0454545...

• 0.0454546

Tags

8.AF.A

8.AF.A.3

• 4

• 8.5

• Between 2 and 3

• A little after 4

Tags

8.AF.A

8.AF.A.3

Answer explanation

When multiplying the like terms, you must add their exponents together.

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8.AF.A.5

• True

• False

Answer explanation

Proper Scientific Notation requires only one digit before the decimal point, not 3.

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8.AF.A.6.a

What number for x would make the

equation proportionally correct?

• 3

• 9

• 81

• 6

Tags

8.AF.B

If the following graph is proportional,

what is its rate of change?

• 2 miles per hour

• 1/2 hours per mile

• 2 hours per mile

• 1 mile per hour

Answer explanation

The rate of change is the slope of the line.

To find the slope, divide the change of y by the change of x, which is equal to 2 miles (y) per 1 hour (x).

Tags

8.AF.B.9.b

Given the following graph,

what is the slope (m)?

• 1

Tags

8.AF.B.9.b

Given the following graph,

what is the y-intercept (b)?

• 0

• 5

• 4

Answer explanation

The y-intercept is the value of y when x = 0.

If x = 0, y = 4.

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8.AF.B.9.c

Solve the system of linear equations.

• No solution

• (4, 3)

• (3, 4)

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8.AF.C