DDesmos SAT Prep
← All categories

Slope & Rate of Change

Find slope from two points by plotting them — no formula needed.

The Desmos trick

Plot both points as ordered pairs and let Desmos draw a line through them, or simply type the slope formula with the actual numbers plugged in to get an instant decimal or fraction.

  • Plot the two given points: (-2,5) and (3,-5)
  • Type the slope formula directly with numbers: (-5-5)/(3-(-2)) to get the value instantly
  • Graph y = mx + b with your computed slope to double-check it passes through both points

Practice questions

Q1A line passes through the points (-2, 5) and (3, -5). What is the slop…
Easy
Q2A line has a slope of 3/4 and passes through the point (8, 2). What is…
Medium
Q3A line passes through (4, -1) and (-2, 11). What is the slope of the l…
Easy
Q4A line has slope -3 and passes through the point (2, -4). What is its …
Medium