แผ่นงานReview Systems of Linear Equations and Inequalities
คำถามทั้งหมด: 16
On a graph, the solution to a system of linear equations is given by _____.
The x-intercept of each line
The y-intercept of each line
All points on either line
The point of intersection of the lines
Look at the graph to the left.
Which of the following ordered pairs represents the solution to the system?
(1, 2)
(2, 2)
(2, 1)
(0, 2)
Look at the system of equations below:
y=ax+c
y=bx+d
For the system to have no solution, what must be true of a and b ?
a+b=c
a=b
a>b
a<b
Which graph represents the following system of equations?
y=2x+2
y=4x+4
2x+3y=1
−4x−2y=−6
Which of the following ordered pairs represents the solution to the system?
(-1, 1)
(1, -1)
(2, -1)
(1, 1)
Vans charges $140 per pair of shoes and Nike charges $135 per pair of shoes plus $20 for shipping and handling. Which system of equations could be used to answer the question, "For what number of shoes do both companies charge the same price?"
y = 140
y = 135 + 20x
y = 140
y = 135x + 20
y = 140x
y = 135x + 20
y = 140x
y = 135 + 20x
Jack's work is shown on the left. What can be concluded about the solution to the system based on Jack's work?
Jack made a mistake
There is no solution to the system
There are infinitely many solutions to the system
There is one solution to the system
For its winter fundraiser the senior class is selling wreaths and flower arrangements. Each wreath sells for $20 and each arrangement sells for $15. Sarah sold 12 items and raised $220.
How many wreaths did Sarah sell?
4
6
8
10
State the number of solutions to the system:
2y=−6x+8
3x+y=4
No solutions
1 solution
2 solutions
Infinitely many solutions
Michelle and Julie are 17-year old twins, who decided to save their earnings to buy a car. One week Michelle worked 8 hours and Julie worked 14 hours, and they saved $128. The next week Michelle worked 12 hours, Julie worked 16 hours, and they earned $162. Write a system of equations to model the situation. Solve the system to determine how much each girl earns per hour.
y>−x+2
y>32x−31
Which of the following is a graph of the system above?
none of these
Which is not a solution to the system shown in the graph?
(-1, 1)
(0, 1)
(-1, -1)
(1, -1)
y>−2x+2
y≤x+3
Which of the following points is a solution to the system?
(-6, 2)
(4, 1)
(2, -4)
(-1, 6)
Which system of linear inequalities is shown in the graph?
x<−4
y>2
x≥−4
y≤2
x>−4
y<2
x<2
y>−4
y<−2x+3
y≥21x−2
Which is the solution region for the system of inequalities?
Region A
Region B
Region C
Region D
Which system of inequalities is shown in the graph?
y≥−x+2
y<23x−2
y>−x+2
y≤23x−2
y≤−x+2
y>23x−2
y<−x+2
y≥23x−2
แป้นคำตอบReview Systems of Linear Equations and Inequalities
คำถามทั้งหมด: 16
The point of intersection of the lines
(2, 1)
a=b
(2, -1)
y = 140x
y = 135x + 20
There is no solution to the system
8
Infinitely many solutions
(-1, -1)
(4, 1)
x>−4
y<2
Region A
y>−x+2
y≤23x−2