8.F.A.3 games
Play Line BuilderCommon Core 8.F.A.3 · Grade 8 · Functions
Understand that y = mx + b makes a straight line, and work with slope.
7 free games that practise it — no ads, no sign-up, no student accounts. Easiest first. Each game has a Use in class menu to share it to Google Classroom or Teams.
Best match
- Line BuilderGrade 8Slide the ○ on the y-axis to set b and tilt the ◇ on the x = 2 rail to set m — the equation y = mx + b rewrites live as you fit the line to a given equation, plotted points, or a table.Play
- Slope FlyerGrades 6–8Pick your bird's flight line on a grid — its slope (up ÷ across) and start height b — then flap: only the right y = mx + b threads the gaps in the pipes.Play
- Function TranslatorGrade 8Tap columns to plot a function from its table or rule, dial m and b to match a graph, and rebuild the faster of two functions given in different forms — the equation, table and rule stay live-linked to what you build.Play
Also practises it
- Slope SlideGrade 8Drag the tip of a slope triangle across a grid — its legs count the rise and the run, and rise ÷ run is the slope you read off a line, aim through a second point, or build from a given m.Play
- Growth GardenGrade 8Stack each day's leaves on a plant and watch the bar tops plot themselves — equal steps line up straight, doubling curves away, and you lock in which growth is linear.Play
- Function FilterGrade 8Cut the rows that give one input two outputs, drag table points onto a grid to route it linear or nonlinear, and dial a line's rate of change straight off the table.Play
- Rate Race TrackGrade 8Two racers arrive in different forms — one a line on the graph, the other a table, equation or sentence — and the player drags a handle to any grid point on the second racer's line so both sit on one graph, where the steeper line is the faster racer.Play
More grade 8 standards: 8.EE.A.1
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