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Section 1.4 - Graphing Linear functions by hand The easiest way to graph a linear function is to use the slope and the

`y`

- intercept. Occasionally the

`y`

-intercept is not an integer and a separate point must be found. Use the table below to find a point that has a whole number for

`x`

and

`y`

(if you find one right away you do not need to keep filling out the table), then use the slope to graph the line

`f(x)=(1)/(3)x+(2)/(3)`

. One row has already been filled out for you. Questions involving numeric data [1.3-1.4] Two common examples of different questions that can come up involving numeric data are written below. It is important not to confuse these questions. Answer each for the table below, and explain your answers. Do the data represent

`y`

as a function of

`x`

? [1.3] Explain why or why not. Can the data be modeled by a linear function? [1.4] Explain why or why not.