Lines & Slopes
Master the building blocks of graphing — slopes, intercepts, and linear equations.
Levels
Tap a level to start exploring. Earn up to 3 stars per level!
Move the slope slider and watch the line tilt. Discover what 'm' means in y = mx.
A line appears on the graph. Can you pick the equation that matches?
A ghost line is shown. Type the equation in y = mx + b form to match it perfectly.
Adjust the slope and intercept so your line is parallel to the target and passes through the marked point.
Draw 4 or more lines to create a closed geometric shape — a triangle, rectangle, or star.
Use slope and intercept sliders to tilt the ramp — then watch the marble roll into the bucket!
Start with Slope Explorer to learn how the slope
parameter m controls the tilt of a line, then work your way
through identify, match, transform, and create challenges!
Complete all five levels to unlock Marble Ramp Run — a physics puzzle bonus level where you tilt the ramp to roll the
marble into the bucket!