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ACT Math Guide (Khan)
Updated automatically every 5 minutes
Pre-Algebra
place value, rounding
factors
fractions, decimals
exponents, square roots, scientific notation
ratio, proportion, and percent
6th grade: ratios, proportions, percents
7th grade: ratios and proportions
algebra 1: ratios and proportions
linear equations in one variable
absolute value and ordering numbers by value
basic probability
interpreting data
basic statistics
b
asics of inequality
measurement
cross topic arithmetic
number patterns
constructing numeric expressions
number systems
negative numbers
Algebra I
properties of exponents
solving algebraic expressions with substitution
algebraic functions
factoring quadratics
understanding of the quadratic formula
radical expressions
absolute value equations
linear inequalities
patterns in sequences
quadratic inequalities
Algebra II
rational expressions
modeling with linear inequalities
modeling with equations and inequalities
modeling with exponential functions
matrices
quadratic formula, completing the square
factoring polynomials
complex numbers
Coordinate Geometry
relations between equations, graphs, points, lines, polynomials, circles, curves
graphing inequalities
slope
distance
midpoints
conics
Plane Geometry
angles, intersecting lines
circles
perimeter, area, volume
transformations
concept of proof
proofs
pythagorean proof
by contradiction
applications of geometry to three dimensions
Trigonometry
trig relations in right triangles
trig functions
graphing trig functions
modeling with trig functions
trig identities
basic trig equations