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Algebra Chapter 3 Test Review - Linear Equations
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Terms in this set (137)
Yes, it is in the form of y = kx, where k = 3.
Is the function proportional? y = 3x
No, it is not in the form of y = kx, it has -1 at the end.
Is the function proportional? y = 2x - 1
No, it is not in the form of y = kx, it has +2 at the end.
Is the function proportional? y = 2x + 2
Yes, it is in the form of y = kx, where k = -3.
Is the function proportional? y = -3x
Yes, it is in the form of y = kx, where k = 1/2.
Is the function proportional? y = (1/2)x
Yes, it is in the form of y = kx, where k = 3/5.
Is the function proportional? y = (3/5)x
No, it is not in the form of y = kx, it has + 1 at the end.
Is the function proportional? y = (3/5)x + 1
No, it is not in the form of y = kx, it has - 5 at the end.
Is the function proportional? y = (1/2)x - 5
Yes, it is in the form of y = kx, where k = 1.
Is the function proportional? y = x
Yes, it is in the form of y = kx, where k = -1.
Is the function proportional? y = -x
y = 4x, 8
Write the equation and solve: If y= -8 when x = -2, find x when y = 32.
y = 3x, 5
Write the equation and solve: If y = 45 when x = 15, find x when y = 15.
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 = (1/4)x, 3/2
Write the equation and solve: If y = 4 when x = 16, find y when x = 6.
y = (2/3)x, -24
Write the equation and solve: If y = 12 when x = 18, find x when y = -16.
yes, k = 1
Is y = x a direct variation?
yes, k = 2
Is y = 2x a direct variation?
No
Is y = x - 1 a direct variation?
no
Is y = x + 2 a direct variation?
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?
no
Is y = 3 a direct variation?
linear
Is it linear? 3x + 2y = 9
linear
Is it linear? 5x = 10
linear
Is it linear? 3x = 2
linear
Is it linear? 2y = -4
linear
Is it linear? -5y = 20
linear
Is it linear? 7x - 8y = 0
linear
Is it linear? 3x - y = 6
linear
Is it linear? x + y = 0
linear
Is it linear? 2x - 3y = 6
linear
Is it linear? x = 6
linear
Is it linear? y = 1
nonlinear
Is it linear? y = x²
nonlinear
Is it linear? 3x² + 2y = 10
nonlinear
Is it linear? 4x² - 6y = 2
nonlinear
Is it linear? 5xy - 7 = 10
nonlinear
Is it linear? 6yx + 3y = 10
nonlinear
Is it linear? (6/x) + 3y = 9
nonlinear
Is it linear? 5x + (7/y) = 3
nonlinear
Is it linear? 4xy = 10
5x - 8y = 0
Write in standard form: 5x = 8y
8x - 5y = 0
Write in standard form: 8x = 5y
4x - 3y = 0
Write in standard form: 4x = 3y
2x + 3y = 0
Write in standard form: 2x = -3y
2x - 3y = 0
Write in standard form: 2x = 3y
5x + y = 2
Write in standard form: y = -5x + 2
5x + y = -2
Write in standard form: y = -5x - 2
5x - 8y = 6
Write in standard form: 6 + 8y = 5x
3x - 4y = 5
Write in standard form: 5 + 4y = 3x
x - y = -2
Write in standard form: x = y - 2
x + y = 2
Write in standard form: 2 - x = y
2x - y = -4
Write in standard form: -2x + y = 4
x - y = 4
Write in standard form: -x + y = -4
2x + y = -4
Write in standard form: -2x - y = 4
2x + y = 1
Write in standard form: y = -2x + 1
2x - y = 1
Write in standard form: y = 2x + 1
x-int: (-2, 0) y-int: (0, 2)
y = x + 2
x-int: (1, 0) y-int: (0, 1)
x + y = 1
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)
y = x - 2
x-int: (2, 0) y-int: (0, 2)
x + y = 2
x-int: (2, 0) y-int: (0, -2)
x - y = 2
x-int: (-3, 0) y-int: (0, 3)
y = x + 3
x-int: (3, 0) y-int: (0, -3)
y = x - 3
x-int: (3, 0) y-int: (0, 3)
x + y = 3
x-int: (5, 0) y-int: (0, 5)
x + y = 5
x-int: (5, 0) y-int: (0, -5)
x - y = 5
x-int: (3, 0) y-int: (0, -3)
x - y = 3
x-int: (2, 0) y-int: (0, -4)
2x - y = 4
x-int: (2, 0) y-int: (0, -2)
2x - 2y = 4
x-int: (4, 0) y-int: (0, 4)
x + 2y = 4
x-int: (4, 0) y-int: (0, -2)
x - 2y = 4
x-int: (3, 0) y-int: (0, 2)
2x + 3y = 6
x-int: (6, 0) y-int: (0, 4)
2x + 3y = 12
x-int: (5, 0) y-int: (0, 2)
2x + 5y = 10
x-int: (5, 0) y-int: (0, -2)
2x - 5y = 10
x-int: (2, 0) y-int: (0, 6)
3x + y = 6
x-int: (2, 0) y-int: (0, -6)
3x - y = 6
x-int: (2, 0) y-int: (0, 8)
4x + y = 8
x-int: (2, 0) y-int: (0, -8)
4x - y = 8
x-int: (8, 0) y-int: (0, 2)
x + 4y = 8
x-int: (-3, 0) y-int: (0, -9)
3x + y = -9
x-int: (-3, 0) y-int: (0, 9)
3x - y = -9
x-int: (5, 0) y-int: (0, 3)
3x + 5y = 15
x-int: (10, 0) y-int: (0, 3)
3x + 10y = 30
x-int: (5, 0) y-int: (0, 4)
4x + 5y = 20
x-int: (7, 0) y-int: (0, 4)
4x + 7y = 28
x-int: (6, 0) y-int: (0, 5)
5x + 6y = 30
x-int: (6, 0) y-int: (0, -5)
5x - 6y = 30
-1
(-9, -3) & (-7, -5)
-7
(6, 3) and (7, -4)
-4
(7, -4) and (4, 8)
2
(6, -2) and (5, -4)
0
(5, 9) and (3, 9)
undefined
(-7, 8) and (-7, 5)
-1/7
(15, 2) and (-6, 5)
1/5
(3, 9) and (-2, 8)
13/9
(-2, -5) and (7,8)
1/4
(7/3, 4/3) and (-1/3, 2/3)
find the x-intercept
Finding the zero means to
set y = 0 and solve for x
To find the x-intercept means to
x = 25
Find the zero: y = 50 - 2x
x = 5
Find the zero: y = 400 - 80x
x = 5
Find the zero: y = -5x + 25
x = 2
Find the zero: y = -10x + 20
x = 10
Find the zero: y = 100 - 10x
x = 5
Find the zero: y = 40 - 8x
x = 6
Find the zero: y = 60 - 10x
x = 8
Find the zero: y = 200 - 25x
x = 50
Find the zero: y = 150 - 3x
x = 4
Find the zero: y = 200 - 50x
yes, d = -8
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. 21, 13, 5, -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. -2.2, -1.1, 0.1, 1.3, ...
no, no common difference
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. 1, 4, 9, 16, ...
yes, d = 7
Determine whether the sequence is an arithmetic sequence. If yes, state the common difference. 9, 16, 23, 30, ...
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, ...
58, 52, 46
Find the next three terms of the arithmetic sequence: 82, 76, 70, 64, ...
7, 10, 13
Find the next three terms of the arithmetic sequence: -5, -2, 1, 4, ...
7, 21, 35
Find the next three terms of the arithmetic sequence: -49, -35, -21, -7, ...
-1/4, -1/2, -3/4
Find the next three terms of the arithmetic sequence: 3/4, 1/2, 1/4, 0, ...
18, 25, 32
Find the next three terms of the arithmetic sequence: -10, -3, 4, 11, ...
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, ...
an = 4n + 5
Write the equation for the arithmetic sequence: 9, 13, 17, 21, ...
an = 3n - 8
Write the equation for the arithmetic sequence: -5, -2, 1, 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 = 9n - 8
Write the equation for the arithmetic sequence:1, 10, 19, 28, ...
an = -3n + 16
Write the equation for the arithmetic sequence: 13, 10, 7, 4, ...
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, ...
a22 = 58
Find the 22nd term of the sequence: -5, -2, 1, 4, 7, ...
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