Write an equation of the line passing through the given points(1,3) and (-1,-9)

The Solution:

Given:

Required:

To find the equation of a line passing through the given points.

By the formula for the equation of a line:

Substitute these values in the formula.

Cross multiply to get:

Therefore, the correct answer is:

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)

22.83 repeating

step-by-step explanation:

137 ÷ 6 is 22.8333333 therefore we understand that 3 is repeating.

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