Rational Algebraic Expressions

Rational Algebraic Expressions

8th Grade

10 Qs

quiz-placeholder

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Rational Algebraic Expressions

Rational Algebraic Expressions

Assessment

Quiz

Mathematics

8th Grade

Hard

Created by

Miss D.

Used 109+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is NOT a rational algebraic expression?

3x\frac{3}{\sqrt{x}}

a+46\frac{a+4}{6}

x2+2xyx^2+2xy

55

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Give the domain of     y+2y2\frac{y+2}{y-2}  

all real numbers except   1-1  

all real numbers except  11  

all real numbers except  2-2  

all real numbers except  22  

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

For what value of x will the given expression be meaningless? x33x+7\frac{x^3}{3x+7}  

 7-7  

 77  

 73-\frac{7}{3}  

 37-\frac{3}{7}  

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 4xyx2+9x+18\frac{4xy}{x^2+9x+18}  

The domain of the rational algebraic expression above is:

all real numbers except   3     and     6-3\ \ \ \ \ and\ \ \ \ \ -6  

all real numbers except   3    and     63\ \ \ \ and\ \ \ \ \ 6  

all real numbers except  9    and    29\ \ \ \ and\ \ \ \ 2  

all real numbers except   9    and   2-9\ \ \ \ and\ \ \ -2  

5.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

 8yz2+5z\frac{8-y}{z^2+5z}  

Give the values for which the given rational expression is undefined?

 z=0    and     z=5z=0\ \ \ \ and\ \ \ \ \ z=5  

 z =0    and    z=5z\ =0\ \ \ \ and\ \ \ \ z=-5  

 z=0    and    z=1z=0\ \ \ \ and\ \ \ \ z=-1  

 z=0    and    z=1z=0\ \ \ \ and\ \ \ \ z=1  

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Which of the following is NOT a rational algebraic expression?

7x2\frac{7x}{2}

4x6\frac{4}{x-6}

x28yx^2-8y

106c10\sqrt{6c}

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Give the domain of 

 25zz+12\frac{2-5z}{z+12}  

all real numbers except  00  

all real numbers except  66  

all real numbers except  1212  

all real numbers except  12-12  

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