Chapter 3 Review
13/9
(-2, -5) and (7,8)
undefined
(-7, 8) and (-7, 5)
-1
(-9, -3) & (-7, -5)
-1/7
(15, 2) and (-6, 5)
1/5
(3, 9) and (-2, 8)
0
(5, 9) and (3, 9)
2
(6, -2) and (5, -4)
-7
(6, 3) and (7, -4)
-4
(7, -4) and (4, 8)
x-int: (6, 0) y-int: (0, 4)
2x + 3y = 12
x-int: (3, 0) y-int: (0, 2)
2x + 3y = 6
x-int: (6, 0) y-int: (0, 3)
2x + 4y = 12
x-int: (5, 0) y-int: (0, 2)
2x + 5y = 10
x-int: (3, 0) y-int: (0, 6)
2x + y = 6
x-int: (2, 0) y-int: (0, -2)
2x - 2y = 4
x-int: (5, 0) y-int: (0, -2)
2x - 5y = 10
x-int: (2, 0) y-int: (0, -4)
2x - y = 4
x-int: (10, 0) y-int: (0, 3)
3x + 10y = 30
x-int: (-4, 0) y-int: (0, -3)
3x + 4y = -12
x-int: (4, 0) y-int: (0, 3)
3x + 4y = 12
x-int: (5, 0) y-int: (0, 3)
3x + 5y = 15
x-int: (-3, 0) y-int: (0, -9)
3x + y = -9
x-int: (2, 0) y-int: (0, 6)
3x + y = 6
x-int: (-4, 0) y-int: (0, 3)
3x - 4y = -12
x-int: (4, 0) y-int: (0, -3)
3x - 4y = 12
x-int: (-3, 0) y-int: (0, 9)
3x - y = -9
x-int: (2, 0) y-int: (0, -6)
3x - y = 6
x-int: (5, 0) y-int: (0, 4)
4x + 5y = 20
x-int: (7, 0) y-int: (0, 4)
4x + 7y = 28
x-int: (2, 0) y-int: (0, 8)
4x + y = 8
x-int: (2, 0) y-int: (0, -8)
4x - y = 8
x-int: (6, 0) y-int: (0, 5)
5x + 6y = 30
x-int: (1, 0) y-int: (0, 5)
5x + y = 5
x-int: (6, 0) y-int: (0, -5)
5x - 6y = 30
x-int: (2, 0) y-int: (0, 4)
6x + 3y = 12
x-int: (1, 0) y-int: (0, 6)
6x + y = 6
no, no common difference
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. -1.2, 0.6, 1.8, 3.0, ...
no, no common difference
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. -2.2, -1.1, 0.1, 1.3, ...
yes, d = 17
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. -5, 12, 29, 46, ...
no, no common difference
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. 1, 4, 9, 16, ...
yes, d = -8
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. 21, 13, 5, -3, . . .
yes, d = 7
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. 9, 16, 23, 30, ...
a22 = 58
Find the 22nd term of the sequence: -5, -2, 1, 4, 7, ...
a22 = 190
Find the 22nd term of the sequence: 1, 10, 19, 28, ...
a22 = -50
Find the 22nd term of the sequence: 13, 10, 7, 4, ...
18, 25, 32
Find the next three terms of the arithmetic sequence: -10, -3, 4, 11, ...
7, 21, 35
Find the next three terms of the arithmetic sequence: -49, -35, -21, -7, ...
7, 10, 13
Find the next three terms of the arithmetic sequence: -5, -2, 1, 4, ...
4, 2, 0
Find the next three terms of the arithmetic sequence: 12, 10, 8, 6, ...
-8, -13, -18
Find the next three terms of the arithmetic sequence: 12, 7, 2, -3, ...
-1/4, -1/2, -3/4
Find the next three terms of the arithmetic sequence: 3/4, 1/2, 1/4, 0, ...
58, 52, 46
Find the next three terms of the arithmetic sequence: 82, 76, 70, 64, ...
yes, k = 1/2
Is y = (1/2)x a direct variation?
yes, k = -3
Is y = -3x a direct variation?
no
Is y = 2x - 1 a direct variation?
yes, k = 2
Is y = 2x a direct variation?
no
Is y = 3 a direct variation?
no
Is y = x + 2 a direct variation?
No
Is y = x - 1 a direct variation?
yes, k = 1
Is y = x a direct variation?
y = -2x, 12
Write the equation and solve: If y = -4 when x = 2, find y when x = -6.
y = -3x, 15
Write the equation and solve: If y = -9 when x = 3, find y when x = -5.
y = (2/3)x, -24
Write the equation and solve: If y = 12 when x = 18, find x when y = -16.
y = (1/4)x, 3/2
Write the equation and solve: If y = 4 when x = 16, find y when x = 6.
y = 3x, 5
Write the equation and solve: If y = 45 when x = 15, find x when y = 15.
y = 4x, 8
Write the equation and solve: If y= -8 when x = -2, find x when y = 32.
an = 3n - 8
Write the equation for the arithmetic sequence: -5, -2, 1, 4, ...
an = -3n + 16
Write the equation for the arithmetic sequence: 13, 10, 7, 4, ...
an = 12n + 7
Write the equation for the arithmetic sequence: 19, 31, 43, 55...
an = 2n + 3
Write the equation for the arithmetic sequence: 5, 7, 9, 11, 13, ...
an = 4n + 5
Write the equation for the arithmetic sequence: 9, 13, 17, 21, ...
an = 9n - 8
Write the equation for the arithmetic sequence:1, 10, 19, 28, ...
x-int: (4, 0) y-int: (0, 2)
x + 2y = 4
x-int: (8, 0) y-int: (0, 2)
x + 4y = 8
x-int: (-1, 0) y-int: (0, -1)
x + y = -1
x-int: (1, 0) y-int: (0, 1)
x + y = 1
x-int: (2, 0) y-int: (0, 2)
x + y = 2
x-int: (3, 0) y-int: (0, 3)
x + y = 3
x-int: (5, 0) y-int: (0, 5)
x + y = 5
x-int: (6, 0) y-int: (0, 6)
x + y = 6
x-int: (7, 0) y-int: (0, 7)
x + y = 7
x-int: (8, 0) y-int: (0, 8)
x + y = 8
x-int: (9, 0) y-int: (0, 9)
x + y = 9
x-int: (4, 0) y-int: (0, -2)
x - 2y = 4
x-int: (1, 0) y-int: (0, -1)
x - y = 1
x-int: (2, 0) y-int: (0, -2)
x - y = 2
x-int: (3, 0) y-int: (0, -3)
x - y = 3
x-int: (5, 0) y-int: (0, -5)
x - y = 5