Info Limbo! Flashcards
(28 cards)
Linear Equation Using Two Points
Find the slope, use point Slope form, simplify if needed.
Parallel Lines
Same slope
Perpendicular Lines
Negative reciprocal slope
Horizontal Lines
Y-axis, slope is 0
Vertical Lines
X-axis, slope is undefined
How to make an equation using slope and points?
Use point-slope form. (Might need to multiply negative reciprocal in some cases)
Perfect Strong Correlation?
1
Perfect Negative Correlation?
-1
No Correlation?
0
Association
Two variables are related.
Causation
One variable causes the other.
Scientific Notation?
If the # large, move decimal to left and it’s positive. If the # small, move decimal to right and it’s negative.
Matching graphs
Positive slope: Upward, Negative slope: Downward.
Transformations of Linear Equations
Vertical Stretch (slope): Multiply y-values by k > 1 (fx = x) = y: 1x + 0
Transformations of Linear Equations Pt.2
Vertical Shrink (y-intercept): Multiply y-values by 0 < k < 1. Up: Steep. Down: Less Steep.
Transformations of Linear Equations, Reflections
Negative slope reflects over the x-axis.
One solution
Lines intersect at one point.
No solution
Lines are parallel.
Infinite Solutions
Lines overlap. (Same line)
a1
First term
n
Term you’re solving for.
PEMDAS
Parentheses, then exponents, finally, multiplication/division, addition/subtraction.
Shading Graphs
Above for ≥ & >. Below for ≤ & <
Line in Graphs
Dashed line for < & >. Solid line for ≥ & ≤.