75659
Description
Flashcards by Ellen Billingham, updated more than 1 year ago
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Created by Ellen Billingham
over 11 years ago
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| Question | Answer |
| What does this mean: a ≤ b | a is less than or equal to b |
| What does this mean: a ≥ b | a is greater than or equal to b |
| What does this mean: a < b | a is less than b |
| What does this mean: a > b | a is greater than b |
| What could the "?" be in this inequality: ? x 2 - 4 = <18 | It could be any minus number, or a positive number below 11. So basically <11 |
| On a number line, what does a black circle mean? | It can be equal to that number |
| On a number line, what does a white circle mean? | It can't be equal to that number |
| On a number line, what does a white circle with an arrow pointing to the right mean? | That the number can't equal whatever number the white circle is on, but could be anything bigger. |
| What does a black circle with an arrow pointing to the right mean on a number line? | That the number could equal the number that the black circle is on or it could be anything higher |
| On a number line, what does a white circle with an arrow pointing to the left mean? | That the number can't equal the number that the white circle is on but it could be anything lower. |
| On a number line, what does a black circle with an arrow pointing to the left mean? | The number could equal the number that the black circle is on and it could also equal anything below it. |
| What does this mean: -1 < y ≤ 3 | That y is more than -1 (and can't be equal to -1) and it is less than or equal to 3 |
| On a number line, what does a white circle with a line going to a black circle mean? | That the number can't equal the white circle's number, but it could be anything between the white circle and the black circle, and it could equal the black circle |
| On a number line, what does a white circle with a line going to another white circle mean? | That the number can't equal either of the white circles' numbers, but could be anything in between. |
| On a number line, what does a black circle with a line going to another black circle mean? | That the number could equal either of the black circles' numbers and it could equal anything in between. |
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