if two lines intersect at one point, the system is called 1.consistent and dependent 2.consistent...
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If two lines intersect at one point, the system is called
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25% 25%25%25%1. consistent and dependent
2. consistent and independent
3. inconsistent and independent
4. inconsistent and dependent
In solving a system of equations using the substitution method, suppose you obtain the
result of 3 = 4. What term is used to describe the system?
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25% 25%25%25%1. dependent system
2. none of these
3. consistent system
4. inconsistent system
Find the x-coordinate of the solution of the system
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25% 25%25%25%x y
x y2 3
0
3
2
3
4
3
RS||T||
1. x = 3
2. x = -2
3. x = 2
4. x = -3
Hilda wants to invest part of $6000 in an account that paid 3% and part in an account that paid 5%.
The total annual interest from both accounts is $256. How much was invested at 5%?
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25% 25%25%25%1. $3800
2. $772
3. $4000
4. $3500
Solve the following system by graphing and then give the y-coordinate of the solution.
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25% 25%25%25%
x y
x y
RST
2 6
3
1. y = 4
2. y = -1
3. y = 1
4. y = -4
Equations with different graphs are called ____________ equations.
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25% 25%25%25%
1. consistent
2. inconsistent
3. dependent
4. independent
If line 1 has slope 3 and y-intercept 4 and line 2 has slope and y-intercept 4, how many solutions does the system have?
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25% 25%25%25%
3
1
1. one solution
2. infinitely many solutions
3. cannot determine from the information given
4. no solution
Solve the system by graphing and then give the y-coordinate of the solution.
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25% 25%25%25%
95
52
yx
yx
1. y = 2
2. y = – 1
3. y = – 2
4. y = 1
In solving a system of equations using the substitution method, suppose you obtain the result of 2 = 2. What would be the graph of the system?
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25% 25%25%25%
1. two parallel lines
2. two lines that intersect in one point
3. two lines that coincide
4. two lines that are perpendicular
At the concession stand hot dogs sold for $1.00 and hamburgers for $1.50. At the last football game 175 hot dogs and hamburgers were sold and $235 was collected. How many hamburgers were sold? Solve by writing a system of two equations in two variables.
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25% 25%25%25%
1. 120
2. 100
3. 140
4. 55
The solutions for the system
are in
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25% 25%25%25%
2
0
0
yx
y
x
1. Quadrant I
2. Quadrant II
3. Quadrant III
4. Quadrant IV
A system of equations that has at least one solution is called a(n) _________
system.
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25% 25%25%25%
1. consistent
2. inconsistent
3. dependent
4. independent
Determine the number of solutions for the system
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25% 25%25%25%
xy
yx
4
33
1243
1. one solution
2. no solution
3. none of these
4. infinitely many solutions
Find the y-coordinate of the ordered pair of the solution of the system
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25% 25%25%25%
372
375
yx
yx
1. y = – 1
2. y = 2
3. y = – 2
4. y = 1
If the sum of the measures of two angles is 90, the angles are called ______________ angles.
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25% 25%25%25%
1. right
2. supplementary
3. complementary
4. obtuse
Solve the following system by the elimination (addition) method.
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25% 25%25%25%
224
3
623
yx
yx
1. (2, 0)
2. (0, – 3)
3. The system is inconsistent.
4. The equations are dependent.
A merchant wishes to mix peanuts that sell for $3.50 per pound and cashews that sell for $6 per pound to get 100 pounds of mixed nuts that sell for $4.50 per pound. Let x equal the number of pounds of peanuts and y equal the number of pounds of cashews. If solving this by writing two equations in two variables, which of the following could be one of the equations?
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25% 25%25%25%
1. 3.50x + 6y = 100
2. 3.50x + 6y = 4.50
3. 3.50x + 6y = 450
4. x + y = 4.50
The solutions for the system
are in
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25% 25%25%25%
0
0
y
x
1. Quadrant I
2. Quadrant II
3. Quadrant III
4. Quadrant IV
A system with no solution is called
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25% 25%25%25%1. an independent system
2. a dependent system
3. a consistent system
4. an inconsistent system
Determine if (3,– 2) is a solution of the system
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25% 25%25%25%
1. (3,– 2) is a solution of only the first equation
2. (3,– 2) is a solution of only the second equation
3. (3,– 2) is a solution of both equations
4. (3,– 2) is a not a solution of either equation
xy
yx
574
1323
A chemist needs 12 liters of a 30% acid solution. He has a 10% acid solution and a 40% acid solution. Let x equal number of liters of 10% acid solution and y equal number of liters of 40% acid solution. If solving this problem by writing two equations in two variables, which of the following could be one of the equations?
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1. .10x + .40y = 3.6
2. .10x + .40y = 36
3. .10x + .40y = 12
4. .10x + .40y = .3
Which of the following points cannot be used as a test point to determine which region to shade for the linear inequality ?
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25% 25%25%25%
1. (1, – 2)
2. (– 1, 2)
3. (1, 2)
4. (– 1,– 2)
1252 yx
Equations with different graphs are called __________ equations.
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25% 25%25%25%
1. dependent
2. independent
3. consistent
4. inconsistent
Solve the following system by graphing and then give the x-coordinate of the ordered pair of the solution.
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25% 25%25%25%
1. x = 2
2. x = -2
3. x = 7
4. x = 0
13
22
y x
y
If line 1 has slope 5 and y-intercept 3 and line 2 has slope -5 and y-intercept 4, how many solutions does the system have?
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25% 25%25%25%
1. one solution
2. no solution
3. infinitely many solutions
4. cannot determine from the information given