Coordinate Graphing

Algebra Lesson 1.4

(x, y) values

Start at the origin.

x value

move left or right

THEN

y value

move up or down

Try One

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

Try Some another

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

Try Some - answers

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

answer 4

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

answer 5

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

answer 6

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

The origin

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

Move Zero to the left or right.

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

Move Zero down.

• (+4, +3)• (+5, -1)• (-2, -6)• (-4, +4)• (+5, +3)• (+2, -1)• (0, 0)• (0, -4)• (+5, 0)

Quadrant I - IV

(+, +)

(+, -)

( -, +)

( -, - )

Which Quadrant?

• (+4, +3)

• (+5, -1)

• (-2, -6)

• (-4, +4)

• (+5, +3)

• (+2, -1)

• (0, 0)

• I• IV• III• II• I• IV• On both x and y axes

– No quadrant

y=2x+5

• (x,y) box• Given values• X = -2, -1, 0, 1, +2

x y

-2

-1

0

+1

+2

+1

+3

+5

+7

+9