SAT Algebra Practice
Stay on linear equations, functions, and systems.
Linear equations, systems, functions, and inequalities. Every question in the set stays in Algebra.
Start practicing No account needed.
Pick what to practice.
- 01Linear equations in one variableSolve a linear equation for one unknown. Some are bare equations like 8 − 3x = 23. Others start as a word problem, like a monthly fee or a draining tank, that you turn into an equation first.
- 02Linear equations in two variablesLines and their equations. You find a slope from two points, find intercepts, write horizontal and vertical lines, and say what the numbers in an equation like y = 20x + 50 mean in context.
- 03Linear functionsLinear functions in function notation. You evaluate f(x), build a function from two of its values, and read the slope and intercept of a model like C(h) = 15h + 10 as a rate and a starting amount.
- 04Linear inequalitiesSolve inequalities, write them from word problems that say at least or at most, and check which points satisfy an inequality or a system of them.
- 05Systems of linear equationsTwo linear equations with two unknowns. You solve by substitution or elimination, set up a system from a story like ticket sales, and decide whether a system has one solution, none, or infinitely many.
Easy mistakes to make.
- Treating the y-intercept as the rate of change
- Forgetting to reverse an inequality after multiplying or dividing by a negative number
- Solving a system for one variable when the question asks for an expression
- Confusing a point on a line with the line's equation
Build the set you need.
Write down what the slope, intercept, or unknown stands for before you calculate. It is a small step, and it catches a surprising number of wrong answers.
Every explanation is free. Pick the section, skill, difficulty, and length of your next set.
Start practicing