Find the values for y by substituting 1, 3, 5, and 7 for x.

1, 3, 7, 111. y = 2x – 3

Bell Work

I can… graph points and identify parts of the coordinate plane.

Today’s learning target:

Vocabularycoordinate planex-axisy-axisquadrantx-coordinatey-coordinateorigin

x-axis

Vocabulary:

y-axis

origin (0, 0)

quadrants

III

III IV

Coordinate plane

Ex. 1

Point J is __________________(0, 2); no quadrant

Point M is _________________(2, 0); no quadrant

Point K is __________________(–3, 4); Quadrant ll

Point P is _________________(–3, –2); Quadrant lll

x

y

J

P

K

M

Give the coordinates and quadrants of each point.

(2, 3)x

y

origin

(2, 3)move right 2 units

move up 3 units

(0, 0)

Quadrant IQuadrant II

Quadrant III Quadrant IV

Not in your notes, just an example:

Ex. 2Graph each point on the coordinate plane.

A. A(3, 4)right 3, up 4

B. B(4, 0)right 4, up 0

C. C(–4, 4)left 4, up 4

D. D(–1, –3)left 1, down 3

x

y

A

B

D

C

Ex. 3

Graph each point on the coordinate plane.

E. A(2, 4)right 2, up 4

F. B(2, 0)right 2, up 0

G. C(–2, 4)left 2, up 4

H. D(–1, –1)left 1, down 1

x

y

E

FH

G

Ex. 4

x

y

= |–3| Distance = |–1 – (2)|

M(1, 3)

Find the distance between each pair of points.A. K and L

Use the x-coordinates.

L(2, –1)

N(1, –3)

K(–1, –1)= 3The points are 3 units apart.

Ex. 5

x

y

= |6| Distance = |3 – (–3 )|

M(1, 3)

Find the distance between each pair of points.A. M and N

Use the y-coordinates.

0L(2, –1)

N(1, –3)

K(–1, –1)= 6The points are 6 units apart.

Ex. 6 Be careful, the scale changed!

x

y

= |–8| Distance = |–2 – (6)| B(6, 4)

Find the distance between each pair of points.A. A and B

Use the x-coordinates.

02468

10

2 4 6 82468

6 4 28C(4, –2)

D(4, –8)

A(–2, 4)

= 8The points are 8 units apart.

Ex. 7 Be careful, the scale changed!

x

y

= |6| Distance = |–2 – (–8)| B(6, 4)

Find the distance between each pair of points.B. C and D

Use the y-coordinates.

02468

10

2 4 6 82468

6 4 28C(4, –2)

D(4, –8)

A(–2, 4)

= 6The points are 6 units apart.

Do you have the learning targets mastered?

Did you master today’s learning target?

x

y

M

Give the coordinates and quadrant of each point.1. A2. C

0BA

C

Graph each point on a coordinate plane.3. L(6, –8) 4. M(0, 8)

DL

(–4,–2), lll(–2, 3), ll

Did you master today’s learning target?Find the distance between each pair of points on the graph above.5. A and B6. C and D

7 units6 units

x

y

M

0

BA

C

DL

Today’s assignment:

Lesson 2.2 #’s 19 – 41 all

You need to use graph paper for this assignment.