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Math
| Question | Answer |
|---|---|
| slope y-intercept | y=mx+b |
| standard form | Ax+By+C=0 |
| slope equation | y2-y1/x2-x1 or for a graph rise/run |
| fixed number | y-intercept |
| variable number/constant multiple/ constant of variation | slope |
| m= | slope |
| b= | y-intercept |
| horizontal lines | slope is zero, slope in equation is y=0x+b, y=b is the equation |
| vertical lines | slope doesn't exist=undefined, can't use slope y-intercept for vertical lines, written in the form x=a where a is the x-intercept |
| direct variation | passes through the origin (0,0) y=mx |
| partial variation | doesn't pass through the origin (0,0) y=mx+b |
| linear | points form a straight line, first differences are constant |
| non-linear | points don't form a straight line, first differences aren't constant |
| linear system | a set of two or more linear equations that are considered simultaneously |
| point of intersection | the point where two (or more) lines cross |
| two parallel lines | never cross, no common points, no solution |
| two non-parallel lines | intersect at one point, one solution |
| two identical lines | equation different but same line, infinite number of solutions |
| parallel lines | lines which run in the same direction and never cross |
| perpendicular lines | lines which intersect at right angles (90o) |
| how to know if two equations are parallel | they have equal slopes |
| how to know if two equations are parallel | the slopes are negative reciprocals |
| x-intercept | the value of x where the line crosses the x-axis (y=0) |
| y-intercept | the value of y where the line crosses the y-axis (x=0) |
Created by:
syddj123
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