Tips for creating a line graph

Mrs. McPhillips wanted to see how the temperature of the classroom changed during the day. She took the temperature of the classroom every 30 minutes.

y x

 The independent variable is the variable that the experimenter sets up before the experiment begins.  For this experiment it is = Time (hr).  It is on the x-axis.

y x Time (hr) Independent variable

 The dependent variable is the results or the measurements of your experiment.  It is Temperature (◦C).  It goes on the y –axis.

y x Time (hr) Dependent variable Temperature ( ◦ C)

Time (hr)Temperature (◦C)

 You can do a guess and check to find the scale or use the following formula: Scale ≥ (highest data #) / (# of boxes on your axis)

Time (hr) Scale ≥ Highest # # boxes Scale ≥ 6 12 Scale ≥ 0.5 I will count by Time (hr)

Scale ≥ Highest # # boxes Scale ≥ Scale ≥ I will count by Time (hr) Temp (◦C) Temperature ( ◦ C)

Time (hr) (x, y) (0, 20) Temperature ( ◦ C)

Time (hr) (0, 20) Temperature ( ◦ C)

Time (hr) (0, 20) Room 176’s Temperature during the school day Temperature ( ◦ C)

Day Rate of Plant Growth Height ( cm)