Algebraic expresssion.pptx

Algebraic expresssion.pptx - Algebra Algebraic expressions...

Info icon This preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
Algebra Algebraic expressions
Image of page 1

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Maths Market Pricelist Apples $1 Bananas $2 Mangoes $3 Tomatoes 50c Carrots 20c Potatoes 10c How much is an apple and a banana? How much is an apple and a mango? How much are 3 tomatoes?
Image of page 2
Mathematicians are lazy! Why write whole words when just one letter will do? For example: a + b a + m
Image of page 3

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
But what if we don’t have a pricelist? Let’s think about buying 3 tomatoes We could write the price of 3 tomatoes as t + t + t Here a letter is used to represent the price of a tomato In algebra we write the sum t + t + t as 3 t 3 lots of t or 3 times t Notice that the expression is 3 t The multiplication sign has been omitted We write 3 t (3 tomatoes) not t3 (tomatoes 3)
Image of page 4
Variables and constants In the expression is 3 t t is a variable A value that can change 3 is a constant Because the number of tomatoes being bought is 3
Image of page 5

Info icon This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
James Bond’s Briefcase Bond, James Bond (BJB) has just put 3 documents
Image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern