EQAO Grade 9 Principles of Math Help

Ratios

Rates

Proportions

Squares and square roots

Estimating square roots

Introduction to pythagorean theorem

Using the pythagorean relationship

Applications of pythagorean theorem

Comparing and ordering rational numbers

Solving problems with rational numbers in decimal form

Solving problems with rational numbers in fraction form

Determine square roots of rational numbers

Using exponents to describe numbers

Exponent rules

Order of operations with exponents

Using exponents to solve problems

Identifying proportional relationships

Understanding graphs of proportional relationships

Using tables of values to graph proportional relationships

Applications of proportional relationships

Representing patterns in linear relations

Reading linear relation graphs

Solving linear equations by graphing

Solving linear equations using multiplication and division

Solving two-step linear equations: <i>ax + b = c</i>, <i>x/a + b = c</i>

Solving linear equations using distributive property: <i>a(x + b) = c</i>

Solving linear equations with variables on both sides

Relationship between two variables

Understand relations between x- and y-intercepts

Domain and range of a function

Identifying functions

Function notation

Distance formula: \(d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}\)

Midpoint formula: \(M = ( \frac{x_1+x_2}2 ,\frac{y_1+y_2}2)\)

Slope equation: \(m = \frac{y_2-y_1}{x_2- x_1}\)

Slope intercept form: y = mx + b

General form: Ax + By + C = 0

Point-slope form: \(y - y_1 = m (x - x_1)\)

Rate of change

Graphing linear functions using table of values

Graphing linear functions using x- and y-intercepts

Graphing from slope-intercept form y=mx+b

Graphing linear functions using a single point and slope

Word problems of graphing linear functions

Parallel and perpendicular lines in linear functions

Applications of linear relations

Characteristics of polynomials

Equivalent expressions of polynomials

Adding and subtracting polynomials

Multiplying and dividing monomials

Multiplying polynomials by monomials

Dividing polynomials by monomials

Introduction to surface area of 3-dimensional shapes

Nets of 3-dimensional shapes

Surface area of prisms

Surface area of cylinders

Surface area and volume of prisms

Surface area and volume of pyramids

Surface area and volume of cylinders

Surface area and volume of cones

Surface area and volume of spheres

Angles in a circle

Chord properties

Tangent properties

Influencing factors in data collection

Classification of data

Sampling methods

Census and bias

Scatter plots and correlation

What is linear programming?

Linear programming word problems