Math 1 · Unit 6 · Lesson 1 · part 1 of 5
The Words We Use
The vocabulary for this lesson, in one place.
Words we use
| Word | Plain English | What you do |
|---|---|---|
| System of equations | Two or more equations that must all be true at once. | Treat them as one problem with one answer. |
| Solution of a system | A point that makes every equation in the system true. | Check it in both. One true and one false is not a solution. |
| Intersection | The point where the graphs cross: the one point on both lines. | Read its x and y off the grid, then check. |
| Solve by graphing | Graph both lines from m and b, read the crossing, check it. | Good for seeing the answer; not exact when the crossing is off a grid corner. |
| Exact answer | The true x and y, even when they are fractions. | Lessons 2 and 3 give it by algebra. |