CPM Homework Help : CC3MN Problem 9-27

Write the rule for the table at right.
Hint (a):
See problem 9-58 for help in finding the rule of the table.
Answer (a):
Rule: $y = −2x − 3$
What would the slope be based on this equation?
What is the slope?
Hint (b):
It might be easier to use the points $(−2, 1)$ and $(−1, −1)$ to find the slope.
What is the $y$ -intercept?

$x$

x column 1 $4$

x column 2 $\frac { 1 } { 2 }$

x column 3 $–2$

x column 4 is blank.

x column 5 $–1$

x column 6 $7$

$y$

y column 1 $–11$

y column 2 is blank.

y column 3 $1$

y column 4 $–3$

y column 5 $–1$

y column 6 is blank.

Explore the problem with the eTool below.
Click the link at right for the full version of the eTool: 9-27 HW eTool