014 skills pre-assessment • Name:

  1. The first graph shows data gathered by a student in SC 130 physical science.
    Soap density background rectangle major grid lines axes x-axis and y-axis linear regression line data points as circles text layers Soap density volume (cm³) mass (g) y-axis labels 0 8 16 24 32 40 48 56 64 72 80 x-axis labels 0 10 20 30 40 50 60 70 80 90 100
    1. __________ Calculate the slope of the line.
    2. ______________ Write the units for the slope of the line.
    3. ______________ Determine the y-intercept of the line.
    4. ____________________________ Write the y = mx + b slope-intercept equation for the line.
  2. A student gathered the data seen in the table below.
    1. Plot the data.
      Graphical analysis

      Data

      Distance (minutes)Distance (meters)
      0.0000
      0.01530
      0.03060
      0.04590
      background rectangle major grid lines axes text layers Distance in minutes of arc versus distance in meters Distance (minutes) Distance (meters) x-axis labels 0 0.010 0.020 0.030 0.040 0.050 y-axis labels 0 10 20 30 40 50 60 70 80 90 100
    2. __________ __________ Calculate the slope of the line.
    3. __________ __________ Calculate the intercept of the line.
    4. __________ __________ Based on the slope and intercept, 0.100 minutes is how many meters?
    5. __________ __________ Based on the slope and intercept, 200 meters is how many minutes?
  3. __________ What is the slope of the line y = 5.5 + 0.85x?
  4. __________ What is the y-intercept of the line y = 5.5 + 0.85x?
  5. _______________ What math class are you in, if not in math this term, what is the highest math class you took?