What is the part of mathematics in which letters and other general symbols are used to represent numbers and quantities in formulae and equations.

What is y in 3x+3y= 6

What is x in 3x<2y

Is (2,3), (5,4), (1,2), (6,5) a function?

What is f(x)=2x+1 when x is 10?

What is a statement that the values of two mathematical expressions are equal (indicated by the sign =).

What is y in 9y=4(x+1)

What is x in 52x>52y

Is (7,1), (7,2), (7,3) (7,4) a function?

What is f(x)=-3x+21 when x is 0?

What is a rate of change that stays the same and does not change.

What is x in 8+2x=5y

What is x in 13+4x≥2y

Is (5,6), (6,5), (7,5), (2,5) a function?

What is f(x)=91-2x when x is 5?

What is a number that divides into another number exactly and without leaving a remainder.

What is x in 5(2x+y)=y

What is y in 3y(2+3)≤5x

Is (4,9), (8,8), (2,5), (4,2) a function?

What is f(x)=8(x+2) when x is 11?

What is a numerical or constant quantity placed before and multiplying the variable in an algebraic expression (e.g. 4 in 4x y).

What is x in 20/5(2x+3)=3y

What is y in 9y+3(4x+2y)

y<-11x/13

Is (2,7), (4,9), (7,9), (1,8), (0,2), (6,21) a function?

What is f(x)=2x+3(5+x) when x is 4?