The following recursive formula represents the number of players left after week n of a reality show. an = 15, if n =1

an-1 - 2, if n > 1

Write the explicit formula for the number of players left and use it to calculate how many players are left after 6 weeks.

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y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4

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