Puzzles, Twisters & Teasers 12-2 - Blank Home Page for Parkland ...

Name Date Class
LESSON
12-2
Puzzles, Twisters & Teasers
Line Up
Graph each equation. Use the letters of the points on each line
to solve the riddle. Write the letters of 1 and 2 on the first two
blanks of the riddle. The letter of the higher point on the graph
goes first, then the lower point. Follow with points 3 and 4, then
5 and 6, etc.
Point Graph Point Graph
Numbers
Numbers
1 and 2 y x 2 9 and 10 y 2x 1
3 and 4 y 3x 3 11 and 12 y x 1
5 and 6 y 2x 13 and 14 y x
2
7 and 8 x 3
y
E
Y
8
T S H
H
M
4
I T
8 4 O 4 8
R
T
D
4
E L N A G
8
P
x
A hiker went without sleep for seven days and wasn’t tired. How
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Copyright © by Holt, Rinehart and Winston.
24 Holt Middle School Math Course 1
All rights reserved.

LESSON
12-2
Problem Solving
Graphing Functions
Use the table to answer each
question.
1. F 9 C 32 is an equation for
5
the function that gives the values in
the table. What does each variable
represent in the equation Use the
equation to complete the table.
F degrees Fahrenheit;
C degrees Celsius
2. Write a different equation for a
function that gives the values in
the table.
C 5 (F – 32)
9
4. Graph the function described by
either equation on the graph at right.
Check students’ graphs.
5. Use your graph to find the equivalent
Fahrenheit temperature for 8°C.
46°F
Equivalent Temperatures
Celsius (°C)
20
Fahrenheit (°F)
4
10 14
0 32
10 50
20 68
3. Is the ordered pair (30, 86) a solution
for either equation Why or why not
What does each value in the ordered
pair represent
Yes, the ordered pair is (C, F);
86 9 (30) 32
5
32
16
32 16 O 16 32
16
32
C
F
LESSON
12-2
Puzzles, Twisters & Teasers
Line Up
Graph each equation. Use the letters of the points on each line
to solve the riddle. Write the letters of 1 and 2 on the first two
blanks of the riddle. The letter of the higher point on the graph
goes first, then the lower point. Follow with points 3 and 4, then
5 and 6, etc.
Point Graph Point Graph
Numbers
Numbers
1 and 2 y x 2 9 and 10 y 2x 1
3 and 4 y 3x 3 11 and 12 y x 1
5 and 6 y 2x 13 and 14 y x
2
7 and 8 x 3
Y
H
T
I
8
4
y
E
S H M
8 4 O 4 8
R
T
D
4
E L N A G
8
P
T
x
Circle the letter of the correct answer.
6. What Celsius temperature is
equivalent to 58°F
A 50°C C 50°C
B 14.4°C D 40°C
7. Which of these ordered pairs is not a
solution for the equation in Exercise 1
F (100, 212) H (40, 104)
G (0, 32) J (60, 140)
A hiker went without sleep for seven days and wasn’t tired. How
H
1
E
2
S
3
N
10
L
4
I
11
E
5
G
12
P
6
H
13
T
7
T
14
A
8
T
9
Copyright © by Holt, Rinehart and Winston.
23 Holt Middle School Math Course 1
All rights reserved.
Copyright © by Holt, Rinehart and Winston.
24 Holt Middle School Math Course 1
All rights reserved.
LESSON
12-3
Exploration Recording Sheet
Graphing Translations
The graph shows the translation (slide) of the red triangle to the
blue triangle.
y
10
1. Label the coordinates of the vertices of each triangle.
2. Are the two triangles congruent
3. Examine the blue translated triangle.
a. How far is it shifted to the right
b. How far is it shifted up
Think and Discuss
8
6
4
(1, 6)
2
(1, 2) (4, 2)
O 2 4
(7, 8)
(7, 4)
4. Explain how to find the coordinates of the vertices
of the translated triangle by using the coordinates of
the vertices of the original triangle.
Possible answer: If the figure was translated 6 units right and 2 units
up you add 6 to the original x-coordinate and add 2 to the original
y-coordinate (1, 2) (1 6; 2 2) (7, 4)
(10, 4)
6 8 10
5. Explain how you determined whether the triangles are
congruent.
The figures are the same shape and size so they are congruent.
x
yes
6 units
2 units
LESSON
12-3
Practice A
Graphing Translations
Give the coordinates of the vertices of
each figure after the given translation.
1. Translate line segment FG
2 units right.
F'(4, 2); G'(0, 8)
2. Translate line segment FG 4 units
down.
F'(6, 2); G'(2, 4)
3. Translate line segment FG 1 unit up
and 1 unit left.
F'(7, 3); G'(3, 9)
4. Translate triangle XYZ 1 unit up
and1 unit right.
X'(6, 5); Y'(3, 3);
Z'(6, 1)
5. Translate triangle XYZ 1 unit
down and 2 units right.
X'(5, 7); Y'(2, 5);
Z'(5, 3)
6. Translate triangle ABC 2 units up.
A'(3, 4); B'(3, 9);
C'(8, 4)
7. Translate triangle ABC 3 units left.
A'(0, 2); B'(0, 7);
C'(5, 2)
y
G
8
4
F
x
8 4 O 4 8
4
8
y
8
4
x
8Z
4 O 4 8
4
Y
X
8
y
8 B
4
A C x
8 4 O 4 8
4
8
Copyright © by Holt, Rinehart and Winston.
27 Holt Middle School Math Course 1
All rights reserved.
Copyright © by Holt, Rinehart and Winston.
28 Holt Middle School Math Course 1
All rights reserved.
Copyright © by Holt, Rinehart and Winston.
73 Holt Middle School Math Course 1
All rights reserved.