CPM Homework Help : CC2 Problem 6-67

Evaluate the expressions $3x-2$ and $4x+4$ for the following values of $x$ . When you have found the value for each expression, write a statement using $<$ , $>$ , or $=$ that shows how the two values are related.

Hint:

Substitute the given values for $x$ and decide whether one side is greater than, less than, or equal to the other side.

$x=0$
Hint (a):
$3(0)-2=0-2=-2$
$4(0)+4=0+4=4$
Answer (a):
$-2<4$

$x=-6$
Hint (b):
$3(-6)-2=-18-2=-20$
$4(-6)+4=-24+4=-20$
Answer (b):
$-20=-20$

$x=5$
Hint (c):
$3(5)-2=?$
$4(5)+4=?$

$x=-2$
Hint (d):
Refer to parts (a), (b), and (c).