Unit 6 Practice Flashcard Rationals

Front

What is the rule for simplifying expressions with negative exponents?

Back

Negative exponents indicate that the base should be flipped to the denominator (or numerator) to make the exponent positive.

Tags

CCSS.8.EE.A.1

Front

How do you find the time it takes for two people working together to complete a job?

Back

Use the formula: 1/(1/A + 1/B) = T, where A and B are the times taken by each person individually, and T is the time taken together.

Tags

CCSS.HSA.CED.A.1

Front

What is the process for adding fractions with different denominators?

Back

Find a common denominator, convert each fraction, and then add the numerators.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Front

How do you factor a difference of squares?

Back

Use the formula: a^2 - b^2 = (a + b)(a - b).

Tags

CCSS.HSA.APR.C.4

Front

Back

The domain is restricted where the denominator equals zero, so x cannot equal 4.

Front

What is the formula for factoring a quadratic expression of the form ax^2 + bx + c?

Back

Look for two numbers that multiply to ac and add to b, then use these to factor the expression.

Front

What is the significance of the numerator in a fraction?

Back

The numerator represents the number of parts being considered out of the total represented by the denominator.

Tags

CCSS.3.NF.A.1

CCSS.3.NF.A.2B

Front

Back

Find a common denominator, combine the fractions, and simplify the result.

Tags

CCSS.HSA.APR.D.7

Front

Back

Tags

CCSS.HSA.APR.C.4

Front

What is the definition of a rational function?

Back

A rational function is a function that can be expressed as the quotient of two polynomials.

Tags

CCSS.HSF-IF.C.7D