Algebra I
STAAR EOC Workbook
50 questions · easiest to hardest · all units mixed · 2026.09.06
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Key concepts
- Slope: m = (y₂ − y₁) / (x₂ − x₁). Line: y = mx + b.
- Exponents: x^m · x^n = x^(m+n); (x^m)^n = x^(mn).
- Factor, then set each factor to 0: (x − p)(x − q) = 0.
- Vertex form: y = a(x − h)^2 + k, vertex (h, k). Axis: x = −b / 2a.
- Quadratic formula: x = (−b ± √(b^2 − 4ac)) / 2a.
- Exponential: y = a · b^t. Growth b > 1, decay 0 < b < 1.
- Flip an inequality sign only when multiplying or dividing by a negative.