Unit 2

Question 1

x-axis

Answer 1

the horizontal axis

Question 2

y-axis

Answer 2

the vertical axis

Question 3

origin

Answer 3

the point (0,0) on a coordinate grid

Question 4

ordered pair/coordinates

Answer 4

a way to describe a point on a graph (x,y)

Question 5

quadrants

Answer 5

the four sections of a coordinate graph:
I - (+, +)
II - (-, +)
III - (-, -)
IV - (+, -)

Question 6

variable

Answer 6

a letter than stands for a number

Question 7

linear

Answer 7

a graph with a constant rate of change (makes a line)

Question 8

slope/rate of change

Answer 8

the amount y increases/decreases as x increases by 1 (the change in the table and graph)

Question 9

constant/y-intercept

Answer 9

the starting amount when x=0; where the graph crosses the y-axis.

Question 10

x-intercept

Answer 10

where y=0; where the graph crosses the x-axis

Question 11

point of intersection

Answer 11

where two graphs cross one another

Question 12

positive correlation

Answer 12

as x increases, y increases (graph goes up to the right)

Question 13

negative correlation

Answer 13

as x increases, y decreases (graph goes down to the right)

Question 14

order of operations

Answer 14

1) parentheses
2) exponents
3) multiplication and division (left to right)
4) addition and subtraction (left to right)