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Elementary and Intermediate Algebra
Mark Dugopolski, Southeastern Louisiana University
Quadratic Equations, Functions, and Inequalities
Enrich Your Math Word Power
For each mathematical term, choose the correct meaning.
1
quadratic equation
A)
ax + b = c with a ≠ 0
B)
ax
2
+ bx + c = 0 with a ≠ 0
C)
ax + b = 0 with a ≠ 0
D)
a/x
2
+ b/x = c with x ≠ 0
2
perfect square trinomial
A)
a trinomial of the form a
2
+ 2ab + b
2
B)
a trinomial of the form a
2
+ b
2
C)
a trinomial of the form a
2
+ ab + b
2
D)
a trinomial of the form a
2
- 2ab - b
2
3
completing the square
A)
drawing a perfect square
B)
evaluating (a + b)
2
C)
drawing the fourth side when given three sides of a square
D)
finding the third term of a perfect square trinomial
4
quadratic formula
A)
(1.0K)
B)
(0.0K)
C)
(1.0K)
D)
(1.0K)
5
discriminant
A)
the vertex of a parabola
B)
the radicand in the quadratic formula
C)
the leading coefficient in ax
2
+ bx + c
D)
to treat unfairly
6
quadratic function
A)
y = ax + b with a ≠ 0
B)
a parabola
C)
y = ax
2
+ bx + c with a &neq; 0
D)
the quadratic formula
7
quadratic in form
A)
ax
2
+ bx + c = 0
B)
a parabola
C)
an equation that is quadratic after a substitution
D)
having four equal sides
8
quadratic inequality
A)
ax
2
+ bx + c > 0 with a ≠ 0 or with ≥, <, or ≤
B)
ax + b > 0 with a ≠ 0 or with ≥, <, or ≤
C)
completing the square
D)
the Pythagorean theorem
9
sign graph
A)
a graph showing the sign of x
B)
a sign on which a graph is drawn
C)
a number line showing the signs of factors
D)
to graph in sign language
10
rational inequality
A)
an inequality involving a rational expression(s)
B)
a quadratic inequality
C)
an inequality with rational exponents
D)
an inequality that compares two fractions
11
test point
A)
the end of a chapter
B)
to check if a point is in the right location
C)
a number that is used to check if an inequality is satisfied
D)
a positive integer
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