Through: (3, 5)
Slope = 2
y - 5 = 2(x - 3)
Through: (2, 3) and (5, 5)
y - 3 = 2/3 (x - 2)
Is this arithmetic? If yes, what is d?
-12, -14 , -16, -18, ........
yes, d = -2
y - 5 = -(x + 3)
y = -x + 2
y-intercept is 4
slope = -2
y = -2x + 4
Through: (-3, -7)
Slope = -1
y + 7 = -(x + 3)
Through: (-1, 4) and (0, 5)
y - 4 = x + 1
Is this arithmetic? If yes, what is d?
1, 4, 9, 16, ......
No.
y - 2 = 1/2(x + 8)
y = 1/2x + 6
y-intercept is -9
Slope = -7/2
y = -7/2x - 9
Through: (-11, 3)
Slope =
-4/3
y - 3 = - 4/3 (x + 11)
Through: (-2, -4) and (-3, -4)
y + 4 = 0(x + 2)
y + 4 = 0
What is explicit formula for the following sequence.
4, 1, -2, -5, .....
an = -3n + 7
y + 5 = -1/3(x - 12)
y = -1/3x - 1
(0,1)
Slope = -5/3
y = -5/3x + 1
Through: (12, 2)
Slope = -6
y - 2 = -6(x - 12)
Through: (1, 2) and (-5, 1)
y - 2 = 1/6 (x - 1)
Find explicit formula and a15 for the following. 10, 17, 24, 31,....
an = 7n + 3, a15 = 108
y - 4.8 = 2.9(x - 10.1)
y = 2.9x - 24.49
(5,0) (0,-6)
Slope = 1/5
y = 1/5x - 6
DOUBLE JEOPARDY
Write an equation for a vertical line through the point (-2,8).
Through: (0, 1) and (3, 3)
y - 1 = 2/3 (x - 0)
y - 1 = 2/3x
Write explicit formula and next 3 terms of .2, .5, .8, .......
an =. .3n -.1. 1.1, 1.4, 1.7
y + 1/2 = -2/3(x + 2)
y = -2/3x - 11/6
Through: (-4, -5)
Slope = 0
y = -5