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# Unit 18: Analytic geometry

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## About this unit

In analytic geometry, also known as coordinate geometry, we think about geometric objects on the coordinate plane. For example, we can see that opposite sides of a parallelogram are parallel by writing a linear equation for each side and seeing that the slopes are the same.### Learn

### Practice

- Distance between two pointsGet 5 of 7 questions to level up!
- Midpoint formulaGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Area & perimeter on the coordinate planeGet 3 of 4 questions to level up!
- Points inside/outside/on a circleGet 3 of 4 questions to level up!
- Coordinate plane word problems: polygonsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Parallel & perpendicular lines from graphGet 3 of 4 questions to level up!
- Classify figures by coordinatesGet 3 of 4 questions to level up!

### Learn

### Practice

- Parallel & perpendicular lines from equationGet 3 of 4 questions to level up!
- Write equations of parallel & perpendicular linesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

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Level up on all the skills in this unit and collect up to 1000 Mastery points!