Set 2 Terms

Question 1

Complex number

Answer 1

a polynomial in the form a + bi, consisting of a real number, a, plus an imaginary number, bi, with a coefficient, b

Question 2

Amplitude

Answer 2

the height of a wave function from the middle line to the top of a hump

Question 3

Parabola

Answer 3

the shape of the graph of a quadratic function

Question 4

Leg

Answer 4

either side of a right triangle that makes up its right angle. That is, any side other than the hypotenuse

Question 5

Factorial

Answer 5

the product of all consecutive integers up to and including a certain integer. Symbol is an exclamation point. 4! = 1 x 2 x 3 x 4

Question 6

Cube

Answer 6

a three-dimensional box in which all the edges are equal. Each of a cube’s six faces is a square.

Question 7

Axis

Answer 7

one of two perpendicular lines that define values in the coordinate plane

Question 8

Zero

Answer 8

the boundary between positive and negative numbers. Zero is neither positive nor negative. Zero is a real number, zero is an integer, and zero is even. Zero is not prime.

Question 9

Reciprocal

Answer 9

the flip of a fraction. The reciprocal of 2/5 is 5/2.

Question 10

Right triangle

Answer 10

any triangle that contains a right angle

Question 11

Quadrant

Answer 11

one of four regions into which the coordinate plane is divided by the two axes.

Question 12

Congruent

Answer 12

equal in measure. Can be said of angles, segments, triangles, or any shape.

Question 13

Parallelogram

Answer 13

a quadrilateral with two sets of parallel sides

Question 14

Intercept

Answer 14

the point where the graph of a function crosses an axis

Question 15

Diagonal

Answer 15

a line segment connecting any two vertices of a polygon, excluding any segment that makes a side of the figure

Question 16

Ray

Answer 16

a part of a line that starts from a point and extends infinitely in one direction

Question 17

Probability

Answer 17

the likelihood of an event occurring. Probability of an event is equal to the number of times the event may occur divided by the total number of possible occurrences.

Question 18

Undefined

Answer 18

a function is undefined when no solution can be found for a given x-value

Question 19

Set

Answer 19

any group of numbers

Question 20

Rational number

Answer 20

a number that can be expressed as a fraction or ratio of two integers. All integers are themselves rational numbers.

Question 21

Prime factor

Answer 21

a factor that is prime, thus cannot be broken up into smaller factors

Question 22

Perpendicular

Answer 22

two lines that make a right angle are perpendicular to each other. The slope of perpendicular lines are the negative reciprocals of each other.

Question 23

Domain

Answer 23

the set of all possible x-values of a function. All inputs for which the function is defined.

Question 24

Equilateral

Answer 24

having all sides of equal length

Question 25

Face

Answer 25

a two-dimensional figure that makes up part of a three-dimensional solid

Question 26

Hypotenuse

Answer 26

the side of a right triangle that is opposite the right angle. The hypotenuse is always the longest side of a right triangle.

Question 27

Coefficient

Answer 27

the number that a variable is multiplied by

Question 28

Permutation

Answer 28

a calculation for determining the number of arrangements of a set when order matters

Question 29

Combination

Answer 29

a calculation for determining the number of arrangements of a set when order doesn’t matter

Question 30

Period

Answer 30

the length of one cycle of a repeating event