# Midterm Vocab Flashcards Preview

## Official Grade 7 Math > Midterm Vocab > Flashcards

Flashcards in Midterm Vocab Deck (43)
1
Q

X-axis

A

the horizontal number lin eon the coordinate grid

2
Q

Y-axis

A

the vertical number line on the coordinate grid

3
Q

origin

A

the point where the x-axis and the y-axis cross

4
Q

A

the four regions on the coordinate grid

5
Q

coordinates are values in a…

A

ordered pair

6
Q

Vertex

A

a point where two sides of a figure meet

7
Q

the plural of vertex is

A

vertices

8
Q

the movement of a geometric figure is called a

A

transformation

9
Q

translation

A

a slide along a straight line

10
Q

reflection

A

a mirror image

11
Q

a turn about a fixed point is called a

A

rotation

12
Q

to approximate an answer is to

A

estimate

13
Q

Overestimating is when

A

the estimate is larger than the actual answer

14
Q

Underestimating is when

A

estimating a number that’s smaller than the actual answer

15
Q

How does adding a zero after the decimal point change the value? For example, 2.3 and 2.30

A

It does not change the value. 2.3 is worth the same amount as 2.30

16
Q

What does the symbol ~ mean?

A

Approximately

17
Q

What is the order of operations?

A
```BEDMAS
(Brackets)
(Exponents)
(Division)
(Multiplication)
(Subtraction)```
18
Q

Another word for brackets is

A

parentheses

19
Q

lines in the same plane that never cross or intersect are considered

A

parallel

20
Q

Lines that intersect at 90 degrees are called

A

perpendicular

21
Q

How are perpendicular lines marked?

A

with a square in the corner

22
Q

a line that divides a line segment in half and is at right angles

A

a perpendicular bisector

23
Q

an angle that is less than 90 degrees is called an

A

acute angle

24
Q

the line that divides an angle into two equal parts

A

angle bisector

25
Q

an angle that is greater than 90 degrees is called

A

obtuse

26
Q

a side of a two dimensional closed figure is called the

A

base

27
Q

the perpendicular distance from the base to the oppositte side

A

height

28
Q

‘h’ is the symbol for

A

height

29
Q

what does percent mean?

A

out of 100

30
Q

a decimal number with a digit or group of digits that repeats forever is called a

A

repeating decimal

31
Q

a decimal number in which the digits stop

A

terminating decimal

32
Q

probability

A

the likelihood or chance of an event occuring

33
Q

the equation for probability is

A

favourable outcomes / possible outcomes

34
Q

outcome

A

one possibility result of a probability experiment

35
Q

favourable outcome

A

a successful result in a probability experiment

36
Q

sample space

A

all possible outcomes of an experiment

37
Q

tree diagrams are used to

A

organize outcomes

38
Q

random

A

an event in which every outcome has an equal chance of occuring

39
Q

experimental probability

A

the probability of an event occuring based on experimental results

40
Q

the expected probability of an event occurring is called the

A

theoretical probability

41
Q

quotient

A

the result of a division question

42
Q

common factor

A

a number that two or more numbers are divisible by

43
Q

what is a common factor of 8 and 12?

A

4