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5 Cards in this Set
- Front
- Back
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1) List 4 important subsets of the real number system.
2) Give a short description of each subset. 3) Give an example of each subset. |
1. Rational numbers - numbers that can be expressed as a ratio of 2 integers. Example: fractions, whole numbers, decimals
2) Irrational numbers - numbers that cannot be written as a ratio of 2 integers. Example: square root of a nonperfect square, non-repeating and non-terminating decimals. 3) Whole numbers - the set of non-negative integers. Example: positive integers and 0 4) Integers - whole numbers and their opposites. Example: negative and positive whole numbers and 0 |
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1) Explain how to compare these real numbers: 4.65 x 10^(-2), 0.01 , 9/100, 0.063, 0.053615...
2) Arrange the numbers in descending order. |
1) Convert to decimal form, then compare, or use the sort feature on the calculator.
2) 0.01 , 9/100 , 0.063 , 0.053615..., 4.65 x 10^(-2) |
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1) When 2 triangles are similar, corresponding angles are ____, and corresponding sides are _______.
2) When 2 triangles are congruent, corresponding angles are _______, and corresponding sides are ________. |
1) congruent, proportional
2) congruent, congruent |
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Tell how you can determine if a function is nonlinear from looking at
1)the graph of the function 2)the equation of the function |
1)The graph of a nonlinear function is not a straight line.
2)The equation is not of the form y = mx + b. Example y = x^2 |
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1)Define and tell how to find the slope of line l a)from the graph and b)from the equation
2)Define and tell how to find the y-intercept of the line a)from the graph and b)from the equation. |
1)a)Pick 2 points on the line. Count the vertical distance (rise) and the horizontal distance (run) between the 2 points. Slope = rise / run.
b)Convert the equation to slope-intercept form. Equation: y= mx + b; m is the slope. 2)a)The point where the line crosses the y-axis is the y-intercept. b)Convert the equation to slope-intercept form. Equation: y = mx + b; b is the y-intercept. |
