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Chapter 4 Lesson 3: Interpreting Graphs
November 4, 2013
Agenda
•
•
•
•
•
•

Warm Up
4.3 Notes
Examples
Practice
Formative Assessment
HW:
– Math7: Txtbk PG: 235 12-24
– PA: Txtbk PG: 235 12-24
Bell Ringer
• Alessia walked to the store to buy some
groceries. Tell whether her position in
each story is best represented by a line
with positive, negative, or zero slope.

• 1. Alessia stopped to tie her shoe.
• 2. Alessia walked from home to the store.
• 3. Alessia ran home from the store.
Objective
• Learn to relate graphs to situations
• You can use a graph to show the
relationship between speed and time, time
and distance, or speed and distance.
0

Speed
(mi/hr)

• The graph at the right
shows the varying speeds
at which Emma exercises
her horse. The horse
20
walks at a constant speed
for the first 10 minutes.
Its speed increases over
the next 7 minutes, and
then it gallops at a constant10
rate for 20 minutes. Then
1
0

2
0

3
0

4
0

• it slows down over the next 3 minutes and
• then walks at a constant pace for 10 minutes.

5
0
Time
(min)
.
The height of a tree increases over time, but
not at a constant rate. Which graph bests
shows this?

As the tree grows, its height increases and then reaches its maximum height.
Graph A shows the height of a tree not increasing but remaining constant.
Graph C shows the height of a tree increasing at a constant rate without
reaching a maximum height. The answer is graph B.
Reminders

• Chapter 4 Section A Quiz
TOMORROW!

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Chapter 4 lesson 3

  • 1. Chapter 4 Lesson 3: Interpreting Graphs November 4, 2013
  • 2. Agenda • • • • • • Warm Up 4.3 Notes Examples Practice Formative Assessment HW: – Math7: Txtbk PG: 235 12-24 – PA: Txtbk PG: 235 12-24
  • 3. Bell Ringer • Alessia walked to the store to buy some groceries. Tell whether her position in each story is best represented by a line with positive, negative, or zero slope. • 1. Alessia stopped to tie her shoe. • 2. Alessia walked from home to the store. • 3. Alessia ran home from the store.
  • 4. Objective • Learn to relate graphs to situations
  • 5. • You can use a graph to show the relationship between speed and time, time and distance, or speed and distance.
  • 6. 0 Speed (mi/hr) • The graph at the right shows the varying speeds at which Emma exercises her horse. The horse 20 walks at a constant speed for the first 10 minutes. Its speed increases over the next 7 minutes, and then it gallops at a constant10 rate for 20 minutes. Then 1 0 2 0 3 0 4 0 • it slows down over the next 3 minutes and • then walks at a constant pace for 10 minutes. 5 0 Time (min)
  • 7. . The height of a tree increases over time, but not at a constant rate. Which graph bests shows this? As the tree grows, its height increases and then reaches its maximum height. Graph A shows the height of a tree not increasing but remaining constant. Graph C shows the height of a tree increasing at a constant rate without reaching a maximum height. The answer is graph B.
  • 8. Reminders • Chapter 4 Section A Quiz TOMORROW!