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1.1: Variables and Expressions

Multiple Choice

What do we use to represent a number or a group of numbers in Algebra?

• constant

• variable

• coefficient

• base

Multiple Choice

What makes an equations different from an expression?

• they are the same

• equations have variables

• the equal sign

• expressions use numbers and variables

Multiple Choice

What does $$a^4$$  mean?

• $$a\times a\times a\times a$$  

• $$4a$$  

• $$4\div a$$  

• $$4\times a\times a\times a\times a$$  

Multiple Select

A term can be which of the following?

• y

• $$\div$$

• 17

• $$4w^3$$

Multiple Choice

True or False. An algebraic expression must have at least one variable.

• True

• False

Multiple Choice

Write an algebraic expression for 9 plus the product of 5 and f.

• 9 + 5/f

• 9 + 5f

• 5f - 9

• 5(9 + f)

Multiple Choice

Write an algebraic expression for 7 less than a number n.

• 7 - n

• 7 < n

• n - 7

• 7 $\div$ n

Multiple Choice

Write an algebraic expression for twice a number t squared

• $2t\times2$

• $2\times2\times t$

• $2t^2$

• $2t\times2t$

Great job!

Now you will try this on your own. Go back to your agenda slides to work on the independent practice :)