Use the x-values: 1, 2, 3, and 4 to write solutions of the equation y = 14x + 8 as ordered pairs.

9514 1404 393

  (1, 22), (2, 36), (3, 50), (4, 64)

Step-by-step explanation:

You can put each value of x in the equation and do the arithmetic, as in ...

  y = 14(1) +8 = 22   for x = 1   ⇒ (x, y) = (1, 22)

Or you can recognize that increasing x by 1 will add 14 to the y-value:

  for x = 2, y = 22 +14 = 36   ⇒ (x, y) = (2, 36)

Carrying on in this way, the sequence of y-values that corresponds to the sequence of x-values is ...

  for x = 1, 2, 3, 4

  y = 22, 36, 50, 64

Written as ordered pairs, these solutions are ...

  (x, y) = (1, 22), (2, 36), (3, 50), (4, 64)

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: