Page 129 - TB_6B
P. 129
Activity 1 Writing Equations
There is a room that has a temperature of 2 . When the heater is turned on,
the temperature rises 3 per hour. Find the relationship between the
number of hours to heat the room and the temperature of the room.
5
2
2 hours 1 hour now 1 hour 2 hours
before before later later
The temperature rises 3 for every 1 hour. Write an equation representing this
relationship. (Let x = the number of hours to heat the room, and let y = the room
temperature.)
Complete the function table. y
10
Hours of 2 10 1 2
Heating 5
x
Temp.( ) 25
6 4 20 2 4 6
Write the data in the table as ordered pairs. 5
(, ), (, ), 0( , 2), (1, 5),
10
(, ).
Locate the ordered pairs on the coordinate
plane.
118
There is a room that has a temperature of 2 . When the heater is turned on,
the temperature rises 3 per hour. Find the relationship between the
number of hours to heat the room and the temperature of the room.
5
2
2 hours 1 hour now 1 hour 2 hours
before before later later
The temperature rises 3 for every 1 hour. Write an equation representing this
relationship. (Let x = the number of hours to heat the room, and let y = the room
temperature.)
Complete the function table. y
10
Hours of 2 10 1 2
Heating 5
x
Temp.( ) 25
6 4 20 2 4 6
Write the data in the table as ordered pairs. 5
(, ), (, ), 0( , 2), (1, 5),
10
(, ).
Locate the ordered pairs on the coordinate
plane.
118
