Algebra 2-1 & 2-2

Standard Form

Ax+By=C

Linear Function

a function whose graph is a nonvertical line

Function

a relation in which each element of the domain is paired with exactly ONE ELEMENT in the range

Point-Slope Form

any line going through (x1,y1) with a slope of m y-y1=m(x-x1)

Function Equation

f(x)= a(x) +/- b

Vertical Line Test

if coordinates only hit one point then it's a function

Domain

the set of all inputs (x coordinates)

Range

the set of all outputs (y coordinates)

Slope

y2-y1 / x2-x1 slope of a horizantel line: 0 slope of vertical line: undefined slope of perpendicular line: negative reciprocals slop of parallel line: same slope

Linear Equation

y=2x

Slope-Intercept Form

y=mx+b