A typical cell phone plan has a fixed base fee that includes a certain amount of data and an overage charge for data use beyond
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Answer:
Part 1)
Part 2)
Step-by-step explanation:
Part 1) Write a linear equation that represents the cost of buying t-shirts from Paula's printing.
Let
x ----> the number of t-shirts
y ----> the cost in dollars
step 1
Find the slope
The formula to calculate the slope between two points is equal to
take two points from the table
(2,23.5) and (4,25.5)
substitute in the formula
step 2
Find the equation of the line in point slope form
we have
substitute
Convert to slope intercept form
Part 2) Write a linear equation that represents the cost of buying t-shirts from Shantay's shirts.
Let
x ----> the number of t-shirts
y ----> the cost in dollars
step 1
Find the slope
The formula to calculate the slope between two points is equal to
take two points from the table
(2,20) and (4,22)
substitute in the formula
step 2
Find the equation of the line in point slope form
we have
substitute
Convert to slope intercept form