What is the equation of a line that passes through (0, 3) and (3, 15)?

y=4x+3

Step-by-step explanation:

First find the slope - you get 15-3 / 3-0 that is 12/3 or 4. Plug it in and get 3 as the intercept.

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)

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step-by-step explanation: