Which variable expression matches the word phrase "4 less than 2 times a number"
a. 4 - 2x
b. 2x - 4
c. 4x - 2

Triangle abc is reflected over the line y=x triangle abc has points (-6,-,-1) and (-5,-6) what is the c coordinate

How can you tell when x and y are not directly proportional?

Graph the line that represents a proportional relationship between d and t with the property that an increase of 33 units in t corresponds to an increase of 44 units in d. what is the unit rate of change of dd with respect to t? (that is, a change of 11 unit in t will correspond to a change of how many units in d? )