Visual Reference / Algebra & Graphs / Straight-Line Graphs
Algebra & Graphs
Straight-Line Graphs
Connect equations to plotted lines, interpret gradients and intercepts, and compare parallel and perpendicular lines.
Curriculum rangeYears 8–11
2
1
y = 2x + 1
| x | -3 | -2 | -1 | 0 | 1 | 2 | 3 |
| y | -5 | -3 | -1 | 1 | 3 | 5 | 7 |
Gradient 2: every time x increases by 1, y increases by 2. The line crosses the y-axis at (0, 1) — that's the y-intercept, c.