7 units · 9 method guides
DeltaMath Algebra 1 skills
DeltaMath's Algebra 1 library follows the standard sequence: equations, linear functions, systems, inequalities, exponents, polynomials, quadratics. These are the skills that show up in the most assignments, with what to watch for in each unit.
Unit 1
Solving equations
Undo operations in reverse order and check by substitution. Most misses here are sign errors.
- One-Step EquationsUse Show Example in DeltaMath
- Two-Step EquationsMethod guide →
- Multi-Step Equations (Distributive Property)Use Show Example in DeltaMath
- Equations with Variables on Both SidesUse Show Example in DeltaMath
- Literal Equations (Solve for a Variable)Use Show Example in DeltaMath
Unit 2
Linear functions and slope
Slope is rise over run, always with the vertical change on top. Reduced fractions, negatives kept.
- Finding Slope GraphicallyMethod guide →
- Slope From Two PointsMethod guide →
- Graphing Lines (Slope-Intercept Form)Method guide →
- Writing Equations of Lines (Point-Slope)Use Show Example in DeltaMath
- Parallel and Perpendicular LinesUse Show Example in DeltaMath
- Standard Form to Slope-Intercept FormUse Show Example in DeltaMath
Unit 3
Systems of equations
Substitution when a variable is isolated, elimination when both equations are in standard form. Answer as (x, y).
- Systems of Equations (Graphically)Use Show Example in DeltaMath
- Systems of Equations (Substitution)Method guide →
- Systems of Equations (Elimination)Use Show Example in DeltaMath
- Systems Word ProblemsUse Show Example in DeltaMath
Unit 4
Inequalities
Flip the symbol when multiplying or dividing by a negative. Solid line for ≤ ≥, dashed for < >.
- One-Variable InequalitiesUse Show Example in DeltaMath
- Compound InequalitiesUse Show Example in DeltaMath
- Graphing Linear InequalitiesUse Show Example in DeltaMath
- Linear Inequality Systems GraphicallyMethod guide →
Unit 5
Exponents and exponential functions
Product, quotient, power, and negative-exponent rules. Write final answers with positive exponents.
- Exponent Rules (Product/Quotient)Use Show Example in DeltaMath
- Negative and Zero ExponentsUse Show Example in DeltaMath
- Exponential Growth and DecayUse Show Example in DeltaMath
- Evaluating Exponential FunctionsUse Show Example in DeltaMath
Unit 6
Polynomials and factoring
Expand by distributing every term; factor by GCF first, then patterns.
- Adding and Subtracting PolynomialsUse Show Example in DeltaMath
- Multiplying BinomialsUse Show Example in DeltaMath
- Factoring GCFUse Show Example in DeltaMath
- Factoring Trinomials (a = 1)Method guide →
- Factoring Trinomials (a ≠ 1)Use Show Example in DeltaMath
- Difference of SquaresUse Show Example in DeltaMath
Unit 7
Quadratic functions
Set to zero before factoring or using the formula. Exact answers unless told to round.
- Solving Quadratics by FactoringUse Show Example in DeltaMath
- Quadratic FormulaMethod guide →
- Graphing Parabolas (Vertex Form)Use Show Example in DeltaMath
- Simplifying RadicalsMethod guide →
Algebra 1 on DeltaMath: questions
- Which DeltaMath Algebra 1 skills are assigned most?
- Based on the skills students search for most, the linear-functions unit dominates: Finding Slope Graphically, Slope From Two Points, and Graphing Lines in Slope-Intercept Form, followed by Linear Inequality Systems Graphically and the equation-solving skills.
- Is there an Algebra 1 answer key for DeltaMath?
- No. Problems are randomized per student from a bank of about 100 variants per skill. Use Show Example before answering and Show Solution after, and use the method guides here to learn the steps once so every variant becomes routine.
- Does DeltaMath Algebra 1 match my textbook?
- Skill names differ from textbook section titles but the content is the same. Teachers usually name assignments after the textbook section, and the skill title appears at the top of each problem.