Unit 9

Question 0

Name of Quadrants

Answer 0

QI, QII, QIII, QIV

Starts in upper right and goes counter clockwise

Question 1

Names for The Grid

Answer 1

Coordinate Grid
Coordinate Plane
Cartesian Plane
Coordinate System

Question 2

Quadrant with both positive values

Answer 2

QI

Question 3

Quadrant with a negative x and positive y

Answer 3

QII

Question 4

Quadrant with both negative values

Answer 4

QIII

Question 5

Quadrant with a negative y and positive x value

Answer 5

QIV

Question 6

Origin

Answer 6

the starting point of the Cartisian Plane, (0,0)

Question 7

X axis

Answer 7

the horizontal line, step #1 to find the point

Question 8

Y axis

Answer 8

the vertical line in the Cartesian Plane, step #2 for finding the point

Question 9

Ordered Pair

Answer 9

(x, y) the pair of numbers that tells you the point on The Plane

Question 10

Quadrant of (3, -2)

Answer 10

QIV

Question 11

Quadrant of (-3, 2)

Answer 11

QII

Question 12

First Way to Graph Coordinate Pairs

Answer 12

xy chart:
1. find the equation
2. find the x (or y) values
3. plug and chug the x (or y) values into the equation
4. use your answer as the other coordinate for the pair
5. graph and draw a line
EX.
y=2x
x -2, -1, 0, 1, 2
y -4, -2, 0, 2, 4

Question 13

Second Way to Graph Coordinate Pairs

Answer 13

x and y intersect:
1. plug in 0 for the opposite value you are solving for using the equation given
2. graph your answer
3. repeat steps 1 and 2 once
4. draw a line connecting the two
EX. 
y=2x + 1
y = 1
x = 1

Question 14

Where is the x intercept?

Answer 14

Anywhere on the x axis

Question 15

Where is the y axis?

Answer 15

Anywhere on the y axis

Question 16

Solution

Answer 16

The coordinate pairs
EX.
(2,3)(-4,5)(-2,-9)

Question 17

Slope

Answer 17

the ratio of the rise to the run of a line

Question 18

Zero Slope

Answer 18

a horizontal line

Question 19

Undefined Slope

Answer 19

a vertical line

Question 20

Formula for Slope

Answer 20

x2 - x1

Question 21

Variable for Slope

Answer 21

m

Question 22

Rise over Run or Run over Rise?

Answer 22

Rise over Run

Question 23

Slope Intercept Form

Answer 23

y = mx + b

Question 24

m=?

Answer 24

slope

Question 25

b=?

Answer 25

y intercept

Question 26

Linear Equations if given slope and y intercept

Answer 26

1. identify values
2. plug and chug into y=mx + b
3. box answer

Question 27

Linear Equations if given a line on a graph

Answer 27

1. find the slope by i) doing rise over run ii) using y2-y1 over x2-x1
2. find y intercept
3. plug and chug values into y=mx + b
4. box answer

Question 28

Linear Equations if given 2 sets of ordered pairs

Answer 28

1. find slope using y2-y1 over x2-x1
2. find y intercept by plugging and chugging ALL values into y=mx + b
3. plug and chug values into y=mx + b

Question 29

Linear Equations if given an x/y table

Answer 29

1. use 2 ordered pairs to calculate slope using y2-y1 over x2-x1
2. calculate y intercept by plugging and chugging
3. plug and chug values into y=mx + b
4. box answer

Question 30

Line of Fit

Answer 30

An estimate line that shows the rate of growth without connecting all the scatter plot points.

Question 31

Making Predictions

Answer 31

VISUAL:
1. draw the line of fit all the way through
2. estimate
USING MATH:
1. plug in the x value for x into the linear equation
2. evaluate
3. box answer