$Posttest$
Let's find aut how much you have leamed from this module.
Multiple Choice: Circle the letter of the correct answer.
1.) What value of x makes 3x-1 equal to 0?
a.) -3 b.) -1/3 c.) 1/3 d.) 3
2.) Which polynomial equation
$ionhs1,-3.an45aszcos$
$a\right)\left(x-1\right)\left(x-3\right)\left(x-5\right)=0$ $c\right)\left(x-1\right)\left(x+3\right)\left(x-5\right)=0$
$b\right)\left(x+1\right)\left(x+2\right)\left(x+5\right)=0$ $4\right)\left(x+1\right)\left(x+2\right)\left(x+5\right)=0$
3.) Which of the following is NOT a root of the equation $x^{3}+5x^{2-x-5}=02$
a.) I b.) -1 c.) 5 d.) -5
4.) What is the degree of the roots
equation 1,3,7,2, acn.) d 7 -3?
b.) 5 with
a.) 1 d.) 10
$5.\right)1owman$ real roots does a polynomial equation have if the degree is 8?
a.) 8 or less b.) exactly 8 c.) 8 or more d.) less than 8
6.) If 7 is a root of the polynomial equation $2x^{3}-14x^{2}+x-7=0$ which of the following is
TRUE?
$a\right)7isafac1o$ of the polynomial $c.\right)x-7isa$ factor of the polynomial
$b\right)x+7is4$ factor of the polynomial d.) If -7 is substituted in "x", the result is 0
7.) Which of the following has a root of -1?
$a\right)x^{35}-1=0$ -
$c.\right)x^{64}-1=0$ $d\right)x^{2}-2x+1=0$
$b.\right)x^{50}+1=0$ –
8.) What are the real roots $o\left(x^{3-4x^{2}+x+6}=0$
-
a.) 3, -1,2 b.) -3,1,2 c.) -3, -1, -2 d.) -3,1, -2
9.) Which of the following is NOT a polynomial equation?
a.) x+3=0 $b.\right)x^{3}+5x=0$ c.) Both A and B d.) Neither A nor B
200 cm of sand. If the length of the box is
10.) Jack made a box that can contain twice its width and
the height is I cm shorter than its width, what is the lengih of the box?
a.) 4 cm b.) 5 cm c.) 10 cm d.) 15 cm
*** If you got an honest score of 15 points (perfect score), you proceed to the next lesson but
if not, go back to the whole module.
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