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y = 2x

Step-by-step explanation:

slope = y2 - y1/x2 - x1

slope = 8 - 6/ 4 - 3

slope = 2/1

slole = 2

y-intercept is y when x = 0

6 - 2/3 - 1 = 4/2

4 - 2/2 - 1 = 2/1

2 - 2/1 - 1 = 0/0

y-intercept = 0 so it doesn't appear in the formula

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)