# Structure 4.50

The spinner interactive can be found here.

Here are your problems, as promised 🙂
y=4x+2
y=6x+3
y=2x+5
y=5x+2
y=3x+4
y=6x-2
y=5x-1
y=8x-4
y=6x-3
y=5x-2 Conduct an experiment to see how the temperature in a cup changes with the amount of sugar dissolved in the cup. Make sure a teacher pours the hot water for you!

Create a table with the headings – amount of sugar (mg), amount of sugar (grams), starting temperature (C), final temperature (degrees C), time (seconds).

Make a graph (either drawn or using Create-a-Graph) to show how the temperature changes with time for each mass of sugar. What does the graph tell you? Are the slopes linear? What is the domain and range of your data?

Use your graph and table to create lines of best fit, and work out a rule for how the temperature varies with time for each amount of sugar. Use c to represent temperature, and t to represent time. You will have five equations that look kinda like this : c=_t + _. WARNING! This is difficult. Get help from a teacher if you need it. 