What's my SLOPE?
y = 3x
3
y = 3x - 8
y = 9x + 4
graphing
What letter represents slope?
m
How many solutions does parallel lines have?
y = -x + 7
y = 2x + 1
(2, 5)
y = 2/5x -9
2/5
2x - 4y = 8
y = 1/2 x - 6
Substitution
What letter represents y intercept?
b
Lines that coincide?
IMS or Infinitely many solutions
y = 4x + 3
y = -x -2
(-1, -1)
y = -x -2
-1
x = 4
Y = -2
graphing
( -3, 8) what letter represents -3?
x
Lines that intersect at one point
one
y = 2x + 2
Y = x -1
( -3, -4)
y = 8
-x + 3 y = -12
4y + x = 8
Elimination
(3, -8) what two letters represent this ordered pair?
(x, y)
Lines that have the same slope and same y intercept?
IMS infinitely many solutions
y = 1/2 x + 5
Y = -5/2x - 1
( -2, 4)
x = -4
undefined
Which method is used most to solve systems of linear equations?
Substitution
( 7, 0) what letter represents zero?
y
Same slope, different y intercepts
No solution
y = -5
X = 8
(-5, 8)