Math 1 · Unit 7 · Lesson 1 · part 1 of 6
The Words We Use
The vocabulary for this lesson, in one place.
Words we use
| Word | Plain English | What you do |
|---|---|---|
| Exponent | How many times the base is multiplied. In 25, the 5. | Count the copies of the base. |
| Base | The number being multiplied over and over. In 25, the 2. | It is the number you multiply by each step. |
| Power | The whole thing, like 25: read two to the fifth. | Work it out by multiplying the base by itself. |
| Constant difference | The same amount added each step: the line pattern. | Subtract each output from the next to check. |
| Constant ratio | The same number multiplied each step: the exponential pattern. | Divide each output by the one before to check. |
| Exponential function | A function that multiplies by the same number every step. | The second family of graphs. Lines add, exponentials multiply. |
| Zero power | Any base to the zero power is 1: the do-nothing number from Unit 1. | Walk the table one step left from the first power. |