250 likes | 418 Views
If two lines intersect at one point, the system is called. consistent and dependent consistent and independent inconsistent and independent inconsistent and dependent .
E N D
If two lines intersect at one point, the system is called • consistent and dependent • consistent and independent • inconsistent and independent • 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? • dependent system • none of these • consistent system • inconsistent system
Find the x-coordinate of the solution of the system • x = 3 • x = -2 • x = 2 • 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%? • $3800 • $772 • $4000 • $3500
Solve the following system by graphing and then give the y-coordinate of the solution. • y = 4 • y = -1 • y = 1 • y = -4
Equations with different graphs are called ____________ equations. • consistent • inconsistent • dependent • 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? • one solution • infinitely many solutions • cannot determine from the information given • no solution
Solve the system by graphing and then give the y-coordinate of the solution. • y = 2 • y = – 1 • y = – 2 • 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? • two parallel lines • two lines that intersect in one point • two lines that coincide • 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. • 120 • 100 • 140 • 55
The solutions for the system are in • Quadrant I • Quadrant II • Quadrant III • Quadrant IV
A system of equations that has at least one solution is called a(n) _________ system. • consistent • inconsistent • dependent • independent
Determine the number of solutions for the system • one solution • no solution • none of these • infinitely many solutions
Find the y-coordinate of the ordered pair of the solution of the system • y = – 1 • y = 2 • y = – 2 • y = 1
If the sum of the measures of two angles is 90, the angles are called ______________ angles. • right • supplementary • complementary • obtuse
Solve the following system by the elimination (addition) method. • (2, 0) • (0, – 3) • The system is inconsistent. • 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? • 3.50x + 6y = 100 • 3.50x + 6y = 4.50 • 3.50x + 6y = 450 • x + y = 4.50
The solutions for the systemare in • Quadrant I • Quadrant II • Quadrant III • Quadrant IV
A system with no solution is called • an independent system • a dependent system • a consistent system • an inconsistent system
Determine if (3,– 2) is a solution of the system • (3,– 2) is a solution of only the first equation • (3,– 2) is a solution of only the second equation • (3,– 2) is a solution of both equations • (3,– 2) is a not a solution of either equation
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? • .10x + .40y = 3.6 • .10x + .40y = 36 • .10x + .40y = 12 • .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 ? • (1, – 2) • (– 1, 2) • (1, 2) • (– 1,– 2)
Equations with different graphs are called __________ equations. • dependent • independent • consistent • inconsistent
Solve the following system by graphing and then give the x-coordinate of the ordered pair of the solution. • x = 2 • x = -2 • x = 7 • x = 0
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? • one solution • no solution • infinitely many solutions • cannot determine from the information given