Do Now 11/27/12Do Now 11/27/12 Take out HW from last night.Take out HW from last night.

- Text p. 196, #2-36 evens, 37, 41 & 42Text p. 196, #2-36 evens, 37, 41 & 42

Copy HW in planner.Copy HW in planner.- Text p. 200, #1-7 all, 10, 12, 13Text p. 200, #1-7 all, 10, 12, 13- Quiz sections 5.1-5.2 ThursdayQuiz sections 5.1-5.2 Thursday

In your journal, list, describe, and draw every graph that In your journal, list, describe, and draw every graph that you know about. Think outside of math class. Have you you know about. Think outside of math class. Have you encountered other types of graphs in any of your other encountered other types of graphs in any of your other classes (science, social studies …)?classes (science, social studies …)?

HomeworkText p. 196, #2-36 evens, 37, 41 & 42

2) IV2) IV 4) I4) I 6) see graph6) see graph 8) see graph8) see graph 10) (-3, 2)10) (-3, 2) 12) (5, 0)12) (5, 0) 14) III14) III 16) II16) II 18) see graph18) see graph 20) see graph20) see graph 22) (5,-6)22) (5,-6)

24) (0, -4)24) (0, -4) 26) (2, 2)26) (2, 2) 28) rectangle; II & III28) rectangle; II & III 30) II30) II 32) (-4, 0)32) (-4, 0) 34) (-6, 3)34) (-6, 3) 36) (0, 5)36) (0, 5) 37) a. (-8037) a. (-80°, °, 2424°)°)

b. (-94°, b. (-94°, 3030°)°) c. (c. (-93-93°, °, 3434°)°) 41) B41) B 42) G42) G

Objective Objective

SWBAT relate graphs to situationsSWBAT relate graphs to situations

Section 5.2 “Interpreting Graphs”Section 5.2 “Interpreting Graphs”

You can use a graph to show the You can use a graph to show the relationship between two quantities for example relationship between two quantities for example speed and time, time and distance, or speed speed and time, time and distance, or speed and distance.and distance.

Time

Dis

tance

(m

i)

x

2

4

6

8

10

12

14y

Key Words for Interpreting GraphsKey Words for Interpreting Graphs

Key wordKey word Graph interpretationGraph interpretation

Increase, goes up, went from …

Decrease, goes down, went back …

Constant, stays the same, stays in the same place, steady …

Fluctuates…

Increases but not at a constant rate

Decreases but not at a constant rate

A Graph Tells a StoryA Graph Tells a Story

Emma exercises her horse. The horse walks at a constant speed for the first 10 minutes. Its speed increases over the next 7 minutes, and then it gallops at a constant rate for 20 minutes. Then it slows down over the next 3 minutes and then walks at a constant pace for 10 minutes.

Emma exercises her horse.

Sp

eed

(m

i/h

r)

10 20 30 40 50Time (min)

0

A Graph Tells a StoryA Graph Tells a Story

The horse walks at a constant speed for the first 10 minutes.

Its speed increases over the next 7 minutes.

Then it gallops at a constantrate for 20 minutes.

Then it slows down over the next 3 minutes.

And then walks at a constant pace for 10 minutes.

Try it outTry it out

You and a friend traveled 10 miles from your house to the movie theater. You watched a movie, and then you traveled 5 miles farther to a restaurant to eat lunch. After eating you return your house.

Dis

tan

ce f

rom

you

r h

ou

se (

mi)

5

15

Time (min)0

A Graph Tells a StoryA Graph Tells a Story

You and a friend traveled 10 miles from your house to the movie theater.

You watched a movie,

then you traveled 5 miles farther to a restaurant

After eating you return your house.

10

20

to eat lunch.

Relating Graphs to SituationsRelating Graphs to Situations

The height of a tree increases over time, but not at a constant rate. Which graph bests shows this?

A. B. C.

A ball is tossed into the air. Which graph best shows this?

Relating Graphs to SituationsRelating Graphs to Situations

Ele

vati

on

Time

Ele

vati

on

Time

A. B.

Relating Graphs to SituationsRelating Graphs to Situations

Pressure decreases as altitude increases. Adams goes on a hiking trip to the top of a mountain and comes back. Which graph best shows this?

Time

Pre

ssure

Time

Pre

ssure

TimeD

ista

nce

(m

i)x

2

4

6

8

10

12

14y

A. B. C.

Relating Graphs to SituationsRelating Graphs to Situations

The dimensions of the basketball court have changed over the years. However, the height of the basket has not changed. Which graph bests shows this?

A. B. C.

Graphing ActivityGraphing Activity

Plot the points according to the Plot the points according to the directions. Then connect the dots. What directions. Then connect the dots. What

mystery figure have you created? mystery figure have you created?

HomeworkHomework Text p. 200, #1-10 all, 12 & 13Text p. 200, #1-10 all, 12 & 13

NJASK7 PrepNJASK7 Prep