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MAT 0020
Practice for Test 8
Graph by plotting points. Plot at least three points for the graph.
1) y = 2x + 2
A)
B)
C)
D)
2) y =
3
x-3
4
A)
B)
C)
D)
1
3) y = -
1
x-3
2
A)
B)
C)
D)
2
Graph using the x- and y-intercepts.
4) 8y - 2x = -4
B) x-intercept: (-2, 0), y-intercept: (0, -
A) x-intercept: (-2, 0), y-intercept: (0, -12)
C) x-intercept: (2, 0), y-intercept: (0, -
1
)
2
1
)
2
D) x-intercept: (-12, 0), y-intercept: (0, -2)
3
5) -2x - 12y = 12
A) x-intercept: (-6, 0), y-intercept: (0, 1)
B) x-intercept: (6, 0), y-intercept: (0, -1)
C) x-intercept: (-6, 0), y-intercept: (0, -1)
D) x-intercept: (6, 0), y-intercept: (0, 1)
4
6) y -
1
x=3
2
A) x-intercept: (-3, 0), y-intercept: (0, 3)
B) x-intercept: (-6, 0), y-intercept: (0, 3)
C) x-intercept: (6, 0), y-intercept: (0, 3)
D) x-intercept: (6, 0), y-intercept: (0, -6)
5
7) 4x - 8y = 8
A) x-intercept: (-2, 0), y-intercept: (0, 1)
B) x-intercept: (2, 0), y-intercept: (0, -1)
C) x-intercept: (-2, 0), y-intercept: (0, -1)
D) x-intercept: (-1, 0), y-intercept: (0, 2)
6
8) -2x - 4y = 12
A) x-intercept: (-3, 0), y-intercept: (0, -6)
B) x-intercept: (3, 0), y-intercept: (0, 6)
C) x-intercept: ( -6, 0), y-intercept: (0,-3)
D) x-intercept: (6, 0), y-intercept: (0, -3)
7
Graph the equation.
9) y = -2
A)
B)
C)
D)
8
10) x = -5
A)
B)
C)
D)
9
Graph the linear equation.
11) -3y = x + 2
A)
B)
C)
D)
10
12) -x = 8y + 1
A)
B)
C)
D)
Determine the slope and the y-intercept.
13) y = 8x + 1
A) Slope -8, y-intercept (0, 1)
B) Slope 1, y-intercept (0, -8)
C) Slope 8, y-intercept (0, 1)
D) Slope 1, y-intercept (0, 8)
14) 2x - 4y = -12
1
A) Slope , y-intercept (0, 3)
2
B) Slope -
C) Slope -2, y-intercept (0, 3)
15) 3x - 4y = -8
1
, y-intercept (0, -3)
2
D) Slope 2, y-intercept (0, -3)
A) Slope -
4
, y-intercept (0, 2)
3
B) Slope
4
, y-intercept (0, -2)
3
C) Slope -
3
, y-intercept (0, -2)
4
D) Slope
3
, y-intercept (0, 2)
4
11
Find the y- and x-intercepts for the equation. Then graph the equation.
16) -5x - 10y = 20
A) (0, 2); (4, 0)
B) (0, -2); (-4, 0)
C) (0, -2); (4, 0)
D) (0, 2); (-4, 0)
12
17) 6x - 4 = y
A) (0, -4); (-
C) (0, -
2
, 0)
3
2
B) (0, -4); ( , 0)
3
2
); (-4, 0)
3
D) (0,
13
2
); (-4, 0)
3
Graph using the slope and y-intercept.
18) 2y - 14x = -6
A)
B)
C)
D)
14
19) -8x = y - 5
A)
B)
C)
D)
Find the slope of the line.
20) 2x + 4y = 20
1
A) 2
21) 4x - 5y = 23
5
A)
4
B) 2
B) -
C)
4
5
1
2
C) -
15
D) - 2
5
4
D)
4
5
Graph the linear equation.
22) 3x - y = 0
A)
B)
C)
D)
16
23) x + y = -7
A)
B)
C)
D)
17
24) y = x + 4
A)
B)
C)
D)
18
25) 2x - y = -6
A)
B)
C)
D)
Find the slope of the line.
26) 2x + 5y = 26
2
A) 5
27) -5y = -2x - 24
2
A)
5
28) 2x - 5y = 16
2
A) 5
29) 3x - 4y = -23
1
A) 1
3
B)
5
2
C) -
5
2
D)
B)
5
2
C) -
2
5
D) -
B)
5
2
C) -
5
2
D)
B) -1
1
3
C)
19
3
4
2
5
5
2
2
5
D) -
3
4
Solve the system by graphing.
30) 3x + y = 7
x + 2y = -1
A) (3, 2)
B) (-3, -2)
C) (1, 4)
D) (3, -2)
31) x = -y
y+ x=6
A) (1, 1)
B) Infinite number of solutions
C) No solution
D) (1, 5)
32) 3x + y = -8
4x + 4y = 0
A) x = -4, y = -5
B) x = 4, y = 4
C) x = -2, y = -2
20
D) x = -4, y = 4
Solve the system:
33) x + y = -13
x-y=1
A) (6, -6)
B) (-6, -7)
C) (-7, -6)
D) No solution
B) (0, -2)
C) (-2, 0)
D) (1, -1)
B) No solution
C) (1, -7)
D) (-1, -8)
B) (-1, -3)
C) (-4, -3)
D) (-3, -1)
B) (4, 6)
C) No solution
D) (5, 4)
B) (1, 3)
C) (1, 4)
D) (0, 4)
B) (0, 0)
C) (0, 13)
D) (7, 6)
B) (5, -4)
C) (-3, -6)
D) (-4, -5)
34) x + y = 0
y = 2x - 2
A) (-1, 0)
35) - x + 3y = 21
2x - 3y = 23
A) (2, 1)
36) y = 2x + 5
2x + y = -7
A) (-1, -5)
37) 4 x - y = 11
3x + y = 17
A) (4, 5)
38) 8x + 7y = 29
2x + 3y = 11
A) No solution
39) x + y = 7
x+y=6
A) No solution
40) x - 7y = 31
-4x - 7y = 51
A) No solution
41) x + y = 2
3x + 3y = 6
A) (2, 3)
B) (3, -1)
C) (0, 0)
D) Infinite number of solutions
21
x + 5y = 27
42) 4x + 4y = 12
A) (3, 7)
B) (-3, 6)
C) No solution
D) (-4, 7)
B) (8, 7)
C) (7, 0)
D) No solution
B) {(0, 0)}
C) {(10, 0)}
D) {(0, 10)}
43) x - 4y = 7
8x - 3y = 56
A) (-7, -1)
44) 5x + 3y = 80
2x + y = 30
A) {(10, 10)}
45) 3x - 5y = 5
6x - 10y = -10
A) Infinite number of solutions
B) (-15, 25)
C) (15, -25)
D) No solution
46) x + 7y = -2
3x + y = 34
A) {(3, 7)}
B) {(-2, 3)}
C) {(7, 12)}
22
D) {(12, -2)}