QUIZ # 1.2 INTRODUCTION TO RATIONAL ALGEBRAIC EXPRESSIONS

Which of the following expressions is not a rational algebraic expression?

• $\frac{x}{\sqrt{3y}}$

• $\frac{3c^3}{b\ }$

• $\frac{a-1}{b+2}$

• $\frac{a-b}{b+a}$

In $x^2-16$ , what is /are the possible value(s) that make the expression equal to 0

• 4

• 4 and -4

• -8

• 8 and -8

What would be the value of x to make the rational algebraic expression $\frac{3x^2+6}{x^2+8x+16}$  

• 0

• -4 and 4

• 4

• -4

Which of the following is not a rational number?

• $\frac{26}{15}$

• $\frac{0}{6}$

• $\frac{7}{0}$

• $\frac{-19}{33}$

 $\frac{2x^3}{xy^2}$  , where the value of  $xy^{2\ }$  is not equal to zero is an example of _____?

• rational number

• not rational algebraic expression

• rational algebraic expression

• domain

What would be the value of $\frac{x+3}{5x-20}\ if\ x=4$  

• 0

• undefined

• 7

• 20

It is the set of values that make a rational algebraic expression defined.

• Rational numbers

• restricted values

• domain

• denominator

Which of the following expressions is not a rational algebraic expression?

• $\frac{5ax}{x^2}$

• $\frac{2x}{y}$

• $\frac{5}{\sqrt{75x}}$

• $\frac{2x+8}{2x^2+8x+8}$

It is also known as algebraic fraction.

• Rational Algebraic expression

• Irrational algebraic expression

• domain

• rational numbers

What makes rational algebraic expression undefined?

• when the numerator becomes 0

• when the denominator becomes 0

• when the value of the given variable is equal to 0

• when the restricted value is equal to 0