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= + ÷ ± ∆ ∞ × π Σ f(x) % ≤ ! ≠ * |
These are basic questions that you will see early in algebra. They are not so difficult but you may not have been introduced to them in pre-algebra.
If the section title is underlined you can click on it to get an explanation of the topic.
Simple addition and subtraction of matrices.
1. Solve
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2. Solve
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| What is the slope of the line y = 3x +1 ? | 3 |
| Note: the slope of a line is the ratio of rise (vertical change, ∆y) to run (horizontal change, ∆x) | |
| What is the y-intercept of the the line y = -2x +5 ? | (0,5) |
| Note: the y-intercept is where the line crosses the y-axis. Except for vertical lines, all do. The value of x is 0 for that point. | |
| Give a table of values for the line 2x + 3y = 3. Where does it cross the y-axis? | sample points: (3,-1); (3/2, 0) and y-int at (0,1) |
| What is the slope of the line y = 2x + 4 ? | 2 |
| What is the y-intercept of the line y = -3x ? | (0,0) |
| Where does the line 5x + 3y= 3 cross the y-axis? | (0,1) |
| Name three points on the line 3x - 2y = 4. | samples: (0, -2); (4/3, 0); (4,4) |
Function rules and notation
| Write a function rule for: (3,4); (4,5); (6,7); (7,8) | y = x + 1 |
| Write a function rule for (12,2); (24,4); (42,7); (60,10) | y = x / 6 |
you are given  . |
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3 |
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-5 |
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9 |
Find  for
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- 40 |
For  find  |
7 |
how to have
