8th
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9th
grade

Mathematics

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Sunnyy Mhaee

4 years

Mathematics

8th -

9thgrade

Rational Algebraic Expressions

Sunnyy Mhaee

604
plays

15 questions

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1. Multiple Choice
30 seconds
1 pt
$Simplify:\ \ \frac{x^8y^{12}}{x^4y^{15}}$
$\frac{x^4}{y^3}$
$\frac{x^{12}}{y^3}$
$x^{12}y^{27}$
$\frac{y^3}{x^4}$
2. Multiple Choice
30 seconds
1 pt
$Simplify:\ \frac{5a^3c^{10}}{20a^5c^4}$
$\frac{4c^6}{a^2}$
$\frac{1a^2c^6}{4}$
$\frac{1c^6}{4a^2}$
$\frac{1a^2}{4c^6}$
3. Multiple Choice
30 seconds
1 pt
$Simplify:\ \ \frac{x^2+6x-7}{x^2-49}$
$\frac{x-1}{x+7}$
$\frac{x+1}{x+7}$
$\frac{x-1}{x-7}$
$\frac{x+1}{x-7}$
4. Multiple Choice
30 seconds
1 pt
Which of the following is NOT a rational algebraic expression?
$\frac{3}{\sqrt{x}}$
$\frac{a+4}{6}$
$x^2+2xy$
$5$
5. Multiple Choice
30 seconds
1 pt
Give the domain of $\frac{y+2}{y-2}$
all real numbers except $-1$
all real numbers except $1$
all real numbers except $-2$
all real numbers except $2$
6. Multiple Choice
30 seconds
1 pt
$\frac{8-y}{z^2+5z}$
Give the values for which the given rational expression is undefined?
$z=0\ \ \ \ and\ \ \ \ \ z=5$
$z\ =0\ \ \ \ and\ \ \ \ z=-5$
$z=0\ \ \ \ and\ \ \ \ z=-1$
$z=0\ \ \ \ and\ \ \ \ z=1$
7. Multiple Choice
30 seconds
1 pt
$\frac{x}{x+3}+\frac{3}{x+3}=$
$x^2$
$\frac{3x}{x\ +\ 3}$
1
$\frac{3x}{3x}$
8. Multiple Choice
30 seconds
1 pt
$\frac{3x\ +\ 4}{x^2\ -\ 16}\ -\ \frac{2x}{x^2-16}=$
$1$
$\frac{x+4}{x^2-16}$
$\frac{1}{x-4}$
$\frac{1}{x+4}$
9. Multiple Choice
5 minutes
1 pt
4 / 7v²
4 / 7v
20 / 35v
20 / 35v²
10. Multiple Choice
5 minutes
1 pt
7(r + 2)/ (r + 2)
(r - 8) / (r + 2)
(r + 2) / 7
(r - 8) / 7
11. Multiple Choice
30 seconds
1 pt
Simplify by cancelling
1
-1
Can't be simplified
12. Multiple Choice
30 seconds
1 pt
A rational expression is said to be in lowest terms when its numerator and denominator have no common factors other than _____.
1
2
3
4
13. Multiple Choice
30 seconds
1 pt
$What\ is\ \frac{2y}{x-2y}less\ than\ \frac{2x}{2y-x}?$

$\frac{2x+2y}{2y-\ x}$
$\frac{2x+2y}{x-2y}$
-1
$\frac{2x-2y}{x-2y}$
14. Multiple Choice
30 seconds
1 pt
$Divide\frac{v^2-9}{3v^2+12}by\ \frac{v+3}{v^2+4}$
$\frac{v-3}{3}$
$\frac{v+3}{3}$
(v+3)(v-3)
3
15. Multiple Choice
30 seconds
1 pt
Add:
$\frac{x+1}{x-1}+\frac{x+1}{x^2-1}$
$\frac{x-1}{x}$
$\frac{x^2+2}{x}$
$\frac{x^{\ }+1}{x\ -1}$
$\frac{x^{ }+2}{x\ -1}$
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Rational Algebraic Expressions

8th - 9thgrade

Mathematics

Mathematics

8th -

9thgrade

Rational Algebraic Expressions

604 plays

15 questions

Introducing new Paper mode

8th
-
9th
grade

604
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