Aferry boat collects 67 people at pier one. at pier two 36 people get on and 23 people get off. at pier three 18 get on and 29 get off. how many people will be on the boat as they head for pier four. somebody

Starts off with 67 people.

Pier two: 67 + 36

               103 - 23 = 80

Pier three: 80 + 18

                 98 - 29 = 69

There will be 69 people on the boat heading for Pier four

The linear equation is:

y = 3*x

when x = 1

y = 3*1 = 3

when x = 2

y = 3*2 = 6

Then as x increases one unit, y increases 3 units.

Then the correct statement would be something like:

"For the linear function, y increases by a sum of 3 each time x increases 1"

The exponential function is:

y = 3^x

When x = 1

y = 3^1 = 3

When x = 2

y = 3^2 = 3*3

when x = 3

y = 3^3 = 3*3*3

So when x increases by 1, we multiply the previous value of y by 3.

Then the correct sentence is something like:

"For the exponential function, y increases by a factor of 3".