Unit 9 - Coordinate Geometry Flashcards
1
Q
What is the formula for finding slope?
A
Y2 - Y1/X2 - X1
2
Q
What is the formula for slope - intercept form?
A
y = mx + b
2
Q
What is the formula for Point - Slope Form?
A
y - k = m (x - h)
3
Q
What is an acronym that helps you remember the point slope acronym?
A
y - x = m (x - h)
You
Know
My
X - ray
Helps
4
Q
How do you know the slope for perpendicular lines?
A
Perpendicular Lines are the Negative Reciprocal to the Segment
5
Q
What is the slope of a vertical line & formula?
A
- VUX
- Undefined
- X = _
5
Q
What is the slope of a horizontal line & formula?
A
- HOY
- Zero
- Y = _
5
Q
How do you know the slope for parallel lines?
A
Slopes are the Same
6
Q
What is the midpoint formula?
A
[ (x1 + x2) /2, (y1 + y2)/2 ]
7
Q
How to get Perpendicular Bisector Equation (4)
A
- Use Midpt. Formula to find midpt. of segment that’s intersecting w/ bis.
- Find slope of segment that’s intersecting w/ bis.
- Take negative reciprocal (slope of bisector)
- Plug coordinates of midpt. & slope to Point - Slope form
