# 014 skills pre-assessment • Name:

- The first graph plots data from a soap density measurement laboratory. The slope of the line is the density of the soap.

- __________ Calculate the slope of the line.
- ______________ Write the units for the slope of the line.
- ______________ Determine the y-intercept of the line.
- ____________________________ Write the y = mx + b slope-intercept equation for the line.

- A student gathered the data seen in the table below.
- Plot the data.

- __________ __________ Calculate the slope of the line.
- __________ __________ Calculate the intercept of the line.
- __________ __________ Based on the slope and intercept, how far will the RipStik travel in 23 seconds?
- __________ __________ Based on the slope and intercept, how long in seconds for the RipStik to travel 7500 centimeters?

- __________ What is the slope of the line
**y = 5.5 + 0.85x**?
- __________ What is the y-intercept of the line
**y = 5.5 + 0.85x**?
- _______________ What math class are you in, if not in math this term, what is the highest math class you took?