CPM Homework Help : CC3 Problem 3-85

A 4 quadrant coordinate plane with the following points: (negative 1, comma negative 3), (0, comma negative 1), (1, comma 1), (2, comma 3), and (3, comma 5). Examine the graph at right.

Use the graph to complete the table:

IN $\left(x\right)$

in (x) column 1 blank

in (x) column 2 blank

in (x) column 3 blank

in (x) column 4 blank

in (x) column 5 blank

OUT $\left(y\right)$

out (y) column 1 blank

out (y) column 2 blank

out (y) column 3 blank

out (y) column 4 blank

out (y) column 5 blank

Hint (a):

Added to the coordinate plane, horizontal & vertical arrows, from the x, & y axes, to the points (1, comma 1), & (3, comma 5).

More Help (a):

IN ( $x$ )

in (x) column 1 blank

in (x) column 2 blank

in (x) column 3 $\color{blue}{1}$

in (x) column 4 blank

in (x) column 5 $\color{blue}{3}$

OUT ( $y$ )

out (y) column 1 blank

out (y) column 2 blank

out (y) column 3 $\color{blue}{1}$

out (y) column 4 blank

out (y) column 5 $\color{blue}{5}$

Use the graph to find the rule:
$y=$ ___________
Hint (b):
The graph is a line, so use what you know about rules in tables.