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| Slope is the rate of change |
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| Slope of a horizontal line |
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| Slope-Intercept form of linear equation |
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| Point-Slope form of linear equation |
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| Slope of parallel lines are |
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| Perpendicular lines intersect at |
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| Slope of perpendicular lines are |
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Definition
| opposite signs and reciprocals of each other |
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| Equation of a vertical line |
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Definition
x = a
where a is the x-coordinate |
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Definition
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| Equation of a horizontal line |
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Definition
y = b
where b is the y-coordinate |
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| Standard Form of a linear equation |
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Definition
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| What does the graph of a line do at an x-intecept? |
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Definition
| The y-value is equal to zero and the graph crosses the x-axis |
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Term
| What does the graph do at the y-intercept? |
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Definition
| The x-coordinate is zero and the graph crosses the y-axis |
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| When multiplying or dividing an inequality by a negative number, you must |
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Definition
| remember to flip the inequality symbol |
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| A negative multiplied or divided by a negative results in a |
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Definition
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| When multiplying or dividing numbers with opposite signs, the result will always be |
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Definition
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| When graphing on a number line, if you have < or > , the dot will be |
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Definition
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| When graphing on a number line and you have < or >, the dot will be |
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Definition
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| You always read graphs from |
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Definition
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| To add or subtract fractions, you must have |
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Definition
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| To multiply fractions, you just |
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Definition
| multiply the numerator straight across and then multiply the denominator straight across |
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| Zero divided by any number equals |
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Definition
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| Any number divided by zero is |
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Definition
| undefined. It can't be done |
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Term
| To find the reciprocal of a fraction, you must |
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Definition
just flip the fraction upside down
Example: the reciprocal of 3/4 is 4/3 |
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Term
| To find the reciprocal of a whole number, you just |
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Definition
put 1 under the whole number, then flip it
Example: The reciprocal of 5 is 1/5 |
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Term
| Two reciprocals multiplied together always equal |
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Definition
1
Example: (3/5) • (5/3) = 1 |
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| When dividing by a fraction, you |
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Definition
| flip the fraction you are dividing by and then multiply |
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