The cost to manufacture x pairs of sunglasses can be represented by a function, c (x). If it costs $398 to manufacture 4 pairs of sunglasses, which of the following is true?

a) c (4) = 99.50

b) c (398) = 4

c) c (4) = 398

d) c (99.50) = 1

Show that the equation of the line passes (3,5) and (3,-7). Is it possible to what an equation of the line in slope-intercept form?

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3/5x - 2 = - 8 Show your work

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