AU1_L1_L4 REAL NUMBERS TEST

Front

What is the absolute value of a number?

Back

The absolute value of a number is its distance from zero on the number line, regardless of direction. It is always non-negative.

Front

How do you express a repeating decimal as a fraction?

Back

To express a repeating decimal as a fraction, let x equal the decimal, multiply by a power of 10 to shift the decimal point, and then subtract the original equation from this new equation to eliminate the repeating part.

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Back

The values of x that satisfy the equation are x = 13 and x = -10.

Front

How do you convert a mixed number to an improper fraction?

Back

Multiply the whole number by the denominator, add the numerator, and place the result over the original denominator.

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Back

Front

What is the square root of a number?

Back

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Back

Front

What is the length of a horse race represented as a fraction?

Back

Front

Back

It is an irrational number approximately equal to 3.464.

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as a fraction of two integers, while irrational numbers cannot be expressed as a simple fraction.