Find the Pattern
x: 0, 1, 2, 3, 4 y: 2, 4, 6, 8, 10 What is the rule for y? (ex. add 1, subtract 2)
Add 2.
(0,0) and (2,2)
m = 1.
x: 0, 1, 2, 3, 4 y: 4, 6, 8, 10, 12 What is b?
b = 4.
x: -2, -1, 0, 1, 2 y: 1, 3, 5, 7, 9 What is the equation? (ex. y = 3x + 1)
y = 2x + 5.
What is the equation for slope?
m=(y2-y1)/(x2-x1)
x: 0, 1, 2, 3, 4 y: 4, 3, 2, 1, 0 What is the rule for y? (ex. add 1, subtract 2)
Subtract 1.
(3,6) and (5,8)
m = 1.
x: -2, -1, 0, 1, 2 y: 4, 6, 8, 10, 12 What is b?
b = 8.
x: -2, -1, 0, 1, 2 y: 6, 4, 2, 0, -2 What is the equation? (ex. y = 3x + 1)
y = -2x + 2.
What is the equation for a vertical line?
x=x-intercept
x: 0, 1, 2, 3, 4 y: 3, 5, *, 9, 11 What is "*" ?
7.
(-1,5) and (3,7)
m = 1/2.
x: -2, -1, 0, 1, 2 y: 9, 6, 3, 0, -3 What is b?
b = 3.
x: 0, 1, 2, 3, 4 y: 1, 3, 5, 7, 9 What is the equation?
y = 2x + 1.
What is an equation for a vertical line?
y=b or y=y-intercept
x: 0, 1, 2, 3, 4 y: 10, 5, *, -5, -10 What is "*" ?
0.
(-4, -4) and (-8, -11)
m = 7/4.
y=5x + 10
b = 10.
x: 1, 2, 3, 4, 5 y: 6, 11, 16, 21, 26 What is the equation?
(0,1) is a point on the graph.
y = 5x + 1.
What is the equation of a line in slope-intercept form?
y=mx+b
x: 0, 1, 2, 3, 4 y: -1, 1, 3, 5, 7 What is the equation? (ex. y = 3x + 1)
y = 2x - 1
(-20, -15) and (-100, -75)
3/4.
y=2x-5/3
b = -5/3.
x: 3, 6, -1, 2, 7 y: 0, -6, 8, 2, -8 What is the equation?
(0,6) is a point on the graph.
y = -2x + 6.
What is the slope of a vertical line?
Undefined