Aclassmate simplifies the expression in exercise 1. is the expression he wrote equivalent to the original expression? explain.
exercise 1: 14d - 9 - 21k - 7dk + 2
exercise 4: 7dk (2 - 3 - 1) - 7
the length of a book is 2.75 times greater than the width. write and simplify an algebraic expression for the perimeter of the box in terms of the width w.

-6 is the correct option from the above given options

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: