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Which equation of a line is this?
y – y1 = m( x – x1 ) |
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| point-slope equation of a line |
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| What is the standard equation of a line? |
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| What are you probably going to have to do if they give you the coordinates of 2 points? |
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| If the give you a point and the slope, which equation of a line should you use? |
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| point-slope equation of a line |
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| What are lines that go up and down called? |
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| If a line is slanted, it's equation must have both |
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| If an equation has both x and y, it's graph will be |
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| The graph of x = 5 is what kind of line? |
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| The graph of y = 5 is what kind of line? |
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| What is the graph of y = 0? |
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| What is the graph of x = 0? |
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| Highway engineers call slope |
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| By its nature, slope is a |
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| If a slope is 2, think of it as |
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| To find the equation of a line from 2 points |
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First calculate the slope,
then use one of the points and the slope in the point-slope equation. |
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| What is the point-slope equation of a line? |
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Definition
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| Which equation of a line is Ax + By = C? |
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| Standard equation of a line |
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| What is the slope-intercept equation of a line? |
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| If the slope is zero, the line is |
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| If the slope is undefined, the line is |
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| All liner equations except for x = a are |
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| The independent variable is always plotted on the |
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| The dependent variable is always plotted on the |
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| A linear equation is the equation of |
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| To graph a linear inequality in two variables (paint can), which equation of a line should you use? |
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Definition
| slope-intercept y = mx + b |
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| To graph a linear inequality in two variables (paint can), if no extra ink has been used to make an equal sign under the arrow, then |
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| To graph a linear inequality in two variables (paint can), if extra ink has been used to make an equal sign under the arrow, then |
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Definition
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| To graph a linear inequality in two variables (paint can), if the inequality is y < you shade |
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| To graph a linear inequality in two variables (paint can), if the inequality is y > you shade |
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| The y-intercepts of parallel lines are |
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| The slopes of parallel lines are |
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| The slope of perpendicular lines are |
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| What is the slope of a line parallel to a line that has a slope of 5? |
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| What is the slope of a line pperpendicular to a line that has a slope of -2? |
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| a horizontal and a vertical line are |
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| If you are given a point and the slope, which form of the equation of a line should you use |
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| Perpendicular lines intersect at |
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| m = 5 and (2, 4) what equation do you use to get the equation of the line? |
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| m = 5 and (2, 4) what is x1? |
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| m = 5 and (2, 4) what is y1? |
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| m = 5 and (2, 4) what is the slope? |
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| y = 6x - 3 What is the slope? |
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Definition
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| y = 6x - 3 What is the y-intercept? |
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Definition
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| y = 6x - 3 What is the y value when the line crosses the y-axis? |
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| 3x + 4y = 12 What's the fastest way to graph this line? |
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| 3x + 4y = 12 If x = 0 what is y? |
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| 3x + 4y = 12 If y = 0 what is x? |
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