Solving a System of Equations by Elimination with Adding

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Mathematics
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11th Grade - University
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Hard
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5 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in solving a system of equations using the elimination method?
Ensure the equations are in slope-intercept form
Make sure the coefficients of one variable are the same
Graph the equations
Substitute one equation into the other
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When should you use addition to eliminate a variable in a system of equations?
When the equations have no solution
When the equations are in standard form
When the coefficients have opposite signs
When the coefficients are the same
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
After eliminating one variable, what is the next step in solving the system of equations?
Multiply the remaining equation by a constant
Add the equations again
Substitute the found value into one of the original equations
Graph the remaining equation
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the solution to the system of equations if the intersection point is found to be (-5, -2)?
The system has no solution
The solution is (-5, -2)
The system has infinitely many solutions
The solution is (5, 2)
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What does it mean when two lines intersect at a point on a graph?
The lines are parallel
The system has no solution
The system has infinitely many solutions
The system has a unique solution
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