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The ACT Mathematics Test
The Mathematics test is based on pre-algebra, elementary algebra, intermediate algebra, coordinate geometry, plane geometry, and trigonometry.

Pre-Algebra (23%). Questions are based on basic operations using whole numbers, decimals, fractions, and integers; place value; square roots and approximations; the concept of exponents; scientific notation; factors; ratio, proportion, and percent; linear equations; absolute value and simple descriptive statistics.

Elementary Algebra (17%). Questions are based on properties of exponents and square roots, evaluation of algebraic expressions, understanding algebraic operations, and the solution of quadratic equations by factoring.

Intermediate Algebra (15%). Questions are based on an understanding of the quadratic formula, rational and radical expressions, absolute value equations and inequalities, sequences and patterns, systems of equations, functions, matrices, roots of polynomials, and complex numbers.

Coordinate Geometry (15%). Questions are based on graphing and the relations between equations and graphs,lines, polynomials, circles, and other curves; graphing inequalities; slope; parallel and perpendicular lines; distance; midpoints; and conics section.

Plane Geometry (23%). Questions are based on the properties and relations of plane figures, including angles and relations among perpendicular and parallel lines; properties of circles, triangles, rectangles, parallelograms, and trapezoids; transformations; area and volume.

Trigonometry (7%). Questions are based on understanding trigonometric relations in right triangles; values and properties of trigonometric functions; graphing trigonometric functions; trigonometric identities; and solving trigonometric equations

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