Level 390
Level 392

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Y-intercepts

sub 0 in for all x terms

X-intercepts

the point on a graph where y = 0, also points where the graph crosses the x-axis

Vertical Asymptotes

zeroes of denominator

Dolly parton

degree is bigger on the top than bottom;no HA

J-lo

bottom heavy; the line is y=0; use sign chart to determine if graph is above or below

kim kardashian

Even degrees; divide lead coefficients to get HA;

Sign chart

use to see which neighborhood the function will go in; for inequalities when using the sign test only 2 can be positive and negative; if you end up with 3 then your work is wrong

Domain

The ______________________ is all the possible INPUT, X, values.

graphing rules

when only 1 x or y intercept, functions cannot cross twice; functions have to cross and x intercept.

inequalities

x intercept is zero so for greater/less than equal to functions, the intercept on the line is shaded circle.

Interval notation

2 lines with Parentheses and brackets

extraneous solutions

when solving rational equations; check solutions for an undefined fraction.