Unit 5 Day 1

Day One Quiz
Line of best fit/equations of lines  

1.  Each sentence tells a person’s location relative to a house. Choose the graph that shows the person’s distance to the house as time goes by.

a.)Stephanie walked towards the house. 

b.) Joe walked away from the house.  

      
c.) Erica walked a circle around the house.

   

 2.)In this graph, which line shows the best line of best fit? 

   

 3.) Write a sentence describing how you would have to walk to produce a similar graph.

(y axis is walking speed, x axis is time in seconds.)  

Tips From the Pros 

Answer Key for Day One

1.)      A = 2

Distance decreases while time increases
B = 1

Distance and time increase
C = 3

Distance stays the same while time increases

2.)      Line A

It has an even amount of dots on each side of the line

3.)      A = Walking slowly, then stops, then walks slowly back

Time and distance increases, then distance stays the same while time increases, then distance decreases while time increases.
B = Walking very slowly then walking quickly.

Distance and time increase slightly, then increase greatly

Youtube Video: Algebra: graphing lines 1 by khanacademy http://www.youtube.com/watch?v=2UrcUfBizyw