Math Quiz: Systems Of Equations!
8 Questions
| Total Attempts: 22
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Questions and Answers
- 1.A line has a gradient -2/3 and passes through the point (3,0). Find the equation of the line.
- A.
Y = - 2/3 x + 3
- B.
Y = - 2/3 x + 2
- C.
Y = 2/3 x + 2
- D.
Y = 2/3 x + 3
- 2.What is the first step you should do when solving by elimination?
- A.
Add up the columns
- B.
Multiply each equation by a constant
- C.
Make sure the variables are aligned
- D.
Distribute
- 3.
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- A.
No solution, multiplication
- B.
Many solutions, addition
- C.
Many solutions, substitution
- D.
No solution, addition
- 4.( - 4, 4) and ( 0, 3) are points on the line l. State the equation of the line l.
- A.
Y=1.75x
- B.
Y=1.75x + 0.75
- C.
Y=4/7x + 3
- D.
None of the above
- 5.How many possible types of solutions do you have when you solve a system of equations?
- A.
1
- B.
2
- C.
3
- D.
4
- 6.Graph the system of equations to determine whether it has no solution, many solutions, or one solution. If the system has one solution, name it. 3x - 2y = -1 2x + y = 4
- A.
One solution at (2, 1)
- B.
One solution at (1, 2)
- C.
No solution
- D.
Infinitely many solutions
- 7.2x2+ 4x + 2=0
- A.
-5
- B.
-1
- C.
5
- D.
40
- E.
9
- 8.Solve by substitution of the following system. 2x + 3y = 3 x - y = 9
- A.
(30,21)
- B.
(21,30)
- C.
(6, -3)
- D.
(-24, -15)
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