Tour

Community

Members
Tutors
Study Plans
Practice
Results

Learn

Review
Tools
Knowledge Base

MCAT TOPIC REVIEWS & RESOURCES

General Mathematical Concepts and Techniques

Data

Need a plan to keep you on track?
Try the Study Plan Builder!

Recognize and interpret linear, semilog, and log-log scales and calculate slopes from data found in figures, graphs, and tables

Calculating Slope

Slope (m) is a characteristic of a linear relationship.

m = (y2 - y1) / (x2 - x1)

Conceptually, slope is "rise over run", representing the change in value on the y-axis that corresponds to a change in value on the x-axis for two data points, (x1, y1) and (x2, y2) above where x2 is greater than x1. A positive slope indicates that the value represented on the y-axis will increase with an increase in value on the x-axis, while a negative slope indicates the y-axis value will decrease with an increase in the x-axis value.

X-axis Y-axis Slope
increase increase positive
increase decrease negative

Learn more about planning and tracking your MCAT prep!
MCAT.me Tour →

Get MCAT.me updates!