Review of Systems and Linear Inequalities

How can I tell if an inequality will have a solid line?

• It has an equal sign.
• The symbol is greater than.
• The symbol has "or equal to."
• You just guess.

Consider the equation:
y=-x+4
Identify the slope and y-intercept.

• m=4, b=-x
• m=-x, b=4
• m=1, b=4
• m=-1, b=4

y < x - 2 will be shaded

• above

• below

y < 6x + 1 will have what kind of line?

• dashed

• solid

y < 6x + 1 will be shaded

• above

• below

x ≥ 2 will have what type of line?

• dashed

• solid

x ≥ 2 will be shaded

• above

• below

y ≥ 5 will have what type of line?

• dashed

• solid

y ≥ 5 will be shaded

• above

• below

y ≤ -3x +1 will have what type of line?

• dashed

• solid