###
abscissa

the value of a coordinate on the horizontal (x) axis

###
absolute value

the positive number that describes the distance on a number line of the graph of the number from zero

###
acute angle

an angle whose value is between 0 and 90 degrees

###
acute triangle

a triangle in which all the angles are acute

###
addend

a number that is added to another number

###
addition

the operation of combining two numbers to form a sum

###
additive inverse

for any nonzero real number, the opposite of the number

###
additive property of inequality

for any real numbers a, b, and c, if a is greater then b,

then a + c is greater than b + c and c + a is greater than c + b

###
algebraic expression

constants and/or variables combined using the arithmetic operators +, -, ×, or ÷

###
algebraic phrase

a meaningful arrangement of numbers and variables

### Please allow access to your computer’s microphone to use Voice Recording.

## We can’t access your microphone!

### Click the icon above to update your browser permissions and try again

Example:

### Reload the page to try again!

Reload

## Press Cmd-0 to reset your zoom

## Press Ctrl-0 to reset your zoom

### It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

## Your microphone is muted

### For help fixing this issue, see this FAQ.