Graphing Rules 1 Always title graph 2 Always

Graphing Rules 1. Always title graph 2. Always label axis and include units. 3. Line of best fit for data must be drawn. 4. All intervals (box) must have equal values. 5. Use entire y and x axis for data. 6. Independent variable is always X , Dependent is Y

NO! YES!

Draw the following 4 graphs and their lines of best fit on your paper.

Linear Relationship Force vs Stretch Force Stretch (N) (cm) 0 0. 0 1 0. 7 2 1. 5 3 2. 1 4 2. 7 5 3. 5 Stretch (cm) 0 Force (N) y= kx k = y/x • Where k is proportionality constant of Y’s change with x

Linear Relationship Force vs Stretch Force Stretch (N) (cm) 0 0. 0 1 0. 7 2 1. 5 3 2. 1 4 2. 7 5 3. 5 Stretch (cm) 0 Force (N) Now fill in the data points and draw a line of best fit!

Hyperbolic Relationship Volume vs Pressure Vol. Pressure (L) (k. Pa) 220 10 120 20 80 30 40 50 35 70 30 100 Volume (L) 0 y= k/x Pressure (k. Pa) k = yx • Where k is equal to inverse of Y to x!x

Hyperbolic Relationship Volume vs Pressure Vol. Pressure (L) (k. Pa) 220 10 120 20 80 30 40 50 35 70 30 100 Volume (L) 0 Pressure (k. Pa) Now fill in the data points and draw a line of best fit!

Exponential Relationship Position vs Time Pos (s) (m) 1 1 2 2 3 5 4 8 5 13 6 16 Position (m) 0 y= kx 2 Time (s) k = y / x 2 • Where y changes with the square of x

Exponential Relationship Position vs Time Pos. Time (m) (s) 1 1 2 2 3 5 4 8 5 13 6 16 Position (m) 0 Time (s) Now fill in the data points and draw a line of best fit!

Simply sketch this one in your lab book. It looks like this Where k is equal to y’s change with The square of x!

Root Curve Relationship Simply sketch this one in your lab book. It looks like this Where k is equal to y’s change with The square of x!