Symbols
what does the symbol > mean?
Greater Than
y=mx+b what is the m and what is the b
m = slope
b= y intercept
graph the inequality y>2/3x+1
m= 2/3 b=1 dashed boundary line
shade above
solution
Simplify -4(3x-5)
-12x+20
What does the symbol < mean
Less than
in the equation y>2x-8 what is the slope and y intercept
m= 2/1 b=-8
graph y<1/3x+2
dashed boundary
shade below
solution
Simplify 5x + y - 2x +7 + 4y
3x+5y+7
What two symbols make a solid boundary line?
greater than or equal to AND less than or equal to
y<x+9 What is the slope and y intercept
graph y<-1/2x+3
m= -1/3 b=3
dashed line
shade above
Given y>-1/2x+7 is (0,0) a solution
no solution
Solve for x:
3x-4=11
x=5
What two symbols make a dashed boundary line
greater than or less than
y>-2x+1 what is the slope and the y intercept
m is -2 b is 1
graph y>-2x-1
slope -2/1 b=-1
dashed line
shade above
Given y>-3/4x+3 is (0,0) a solution
not a solution
-2(x-4)+4x=20
x=6
Is it a solution if the point falls on the dashed line.
No
y<x what is the slope and y intercept
m=1 b=0
graph y>x
slope 1/1 m= 0
dashed line
graph above
Name a test point for y<2x and tell if it is a solution
varied answers
4(2x+3)-7x+4=30
x=14