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Module 5
Solving systems of linear equations by graphing and substitution.
Question | Answer |
---|---|
Is (4,1) a solution for: x + y = 5 x + 4y = 8 | Yes |
How do you find a solution to a system of linear equations by graphing? | Graph the two equations and find the point where they intersect. |
If you simplify 5(x + 1) + 6x - 3, what does it come out to be? | 11x - 2 |
Are x = 1 and y = 1 parallel or intersecting lines? | Intersecting. |
To solve by substitution, what is the first step you must take? | Find x or y for one of the equations. |
If x is a single real number, what can you know about what the graph will look like? | It will be a single vertical line crossing the real number on the x-axis. |