Acertain smart phone family plan cost $55 per month plus additional usage cost if x is the number cell phone minutes used above the plan amount and y is the number of megabytes of data used above the plan amount intercept the following expressions
a. 0.25x
b. 2y
c. 0.25x + 2y + 55

answer: domain and range mean all possible values of x and y that could be substituted to the inequality. a solution means all possible values that make the inequality statement true. so while the range is still all real numbers, the solution is the shaded area, for which y will always be greater than the line of the function.

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step-by-step explanation: