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🔣 Algebra
Line Grapher (y = mx + b)
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Line Grapher (y = mx + b)
Plot any line — change slope and intercept live
Grades 8–10
Practice this:
Grade 7: Ratios & Proportional Relationships
Grade 8: Expressions & Equations
Grade 8: Functions
Grade 9: Algebra — Equations
Grade 9: Functions — Introduction
Line Grapher y = mx + b
Grades 8–10 · Visualize slope and y-intercept
Slope (m) =
2
Y-Intercept (b) =
3
y = 2x + 3
-10
-10
-5
-5
5
5
10
10
x
y
run=1
rise=+2
b=3
x=-1.5
Slope
m = 2
Positive slope — the line goes up to the right
rise = 2
run = 1
Intercepts
Y-intercept:
(0, 3)
X-intercept:
(-1.5, 0)