The 5 most important things I learned in math 9 would be addition, subtraction, multiplication and division of rational numbers. Adding and subtracting with polynomials. Linear equations , linear inequalities algebraically and graphically and proportion. Addition, subtraction, multiplication and division… Continue Reading →

Enlargements and reductions When the dimensions of an object (length, width, height etc) of an object are changed by multiplying by a scale factor. This can be in 2D or 3D objects. Object must stay proportional to each other. Angles… Continue Reading →

I wanted to measure the height of my trampoline using similar triangles and a mirror. The distance between the mirror and I was 2ft and the distance between the trampoline and the mirror was 6ft. Next I measured my height… Continue Reading →

These are the numbers I started with to get my 6 point shape. To reduce my shape by the scale factor of .3 I divided each one of my numbers from the original chart by 3 to get these numbers:… Continue Reading →

Inequalities A linear inequalities is almost the same as a linear equation except the = is replace with a <,>,≥ ,≤ To solve a linear inequality you first have to make zero pairs on either sides of the inequality… Continue Reading →

Vocab: Equation – A statement that the values of two mathematical expressions are equal. Equivalent Equation – When the only solution to the problem is the same. Coefficient – A number used to multiply a variable. Constant – A number… Continue Reading →

If you have a pattern that starts at 1 and increases by 2 then your chart would be X=1,2,3,4,5 and Y=1,3,5,7,9 In which case the rule would be 2X-1. When putting numbers on to a graph you refer to the… Continue Reading →

In grade 9 polynomials I have learned how to add, subtract, multiply and divide with polynomials. I have also learned about terms, coefficients, constants and degree. Addition – When adding polynomials you group all like terms and the get rid… Continue Reading →