Long quiz (Math 9)

Long quiz (Math 9)

Quiz by Noel Padron

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Q 1/50
Score 0
What refers to a function that describes a polynomial equation of degree 2?
29

Quadratic Function
Quartic Function
Linear Function
Cubic Function

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50 questions

Show answers

Q1
What refers to a function that describes a polynomial equation of degree 2?
Quadratic Function
Quartic Function
Linear Function
Cubic Function
30s
Q2
A perfect square trinomial is a trinomial in the form _________.
$a^2-ab-b^2$
$a^2+2ab+b^2$
$a^2+ab+b^2$
$a^2+b^2$
30s
Q3
Whichof the following is the quadratic formula?
$\frac{-b\pm\sqrt{b^2-4ac}}{2a}$
$\frac{b\pm\sqrt{b^2-4ac}}{2a}$
$\frac{-b-\sqrt{b^2-4ac}}{2a}$
$\frac{-b+\sqrt{b^2-4ac}}{2a}$
30s
Q4
In a quadratic equation, the expression b² -4ac is called _________.
discrimination
discipline
discriminant
disciple
30s
Q5
What formula will you use if you want to get the sum of the roots of a quadratic equation?
$\frac{b}{a}$
$-\frac{b}{a}$
$\frac{c}{a}$
$-\frac{c}{a}$
30s
Q6
The product of two consecutive even integers is 120. The first integer is 10, what is the second integer?
14
8
12
11
30s
Q7
Which of the following is being used to indicate inequality?
<
$\perp$
$=$
$\approx$
30s
Q8
In graphing the solution set of quadratic inequalities, what kind of circle will be used if the given inequality symbol is less than ( ?
shaded circle
open circle
big circle
red circle
30s
Q9
In a quadratic function, what variable is the independent variable?
f(x)
a variable
x variable
y variable
30s
Q10
What is the graph of a quadratic function?
Zigzag line
Circle
Parabola
Straight line
30s
Q11
What is the highest or lowest point doe the parabola reach?
symmetry
axis
intercepts
vertex
30s
Q12
What do you call the line that divides the parabola into two equal parts?
axis of symmetry
axis
vertex
intercepts
30s
Q13
In f(x) = ax² + bx + c, ifa > 0, the parabola opens________.
downward
upward
to the right
to the left
30s
Q14
In f(x) = ax² + bx + c, if a < 0, the parabola opens ________.
downward
to the right
upward
to the left
30s
Q15
In the equation y = a(x – h)² + k, what are the coordinates of the vertex of the parabola?
(x,k)
(h,k)
(x,h)
(x,y)
30s

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